diff --git a/Classes/Common/AbstractDocument.php b/Classes/Common/AbstractDocument.php
index 1f948e7ed..06bd0d4b3 100644
--- a/Classes/Common/AbstractDocument.php
+++ b/Classes/Common/AbstractDocument.php
@@ -12,6 +12,7 @@
 
 namespace Kitodo\Dlf\Common;
 
+use Kitodo\Dlf\Configuration\UseGroupsConfiguration;
 use TYPO3\CMS\Core\Configuration\ExtensionConfiguration;
 use TYPO3\CMS\Core\Database\ConnectionPool;
 use TYPO3\CMS\Core\Log\Logger;
@@ -275,12 +276,12 @@ abstract class AbstractDocument
     protected string $toplevelId = '';
 
     /**
-     * Holds the configured useGrps as array.
+     * Holds the configured useGroups as array.
      *
-     * @var array
      * @access protected
+     * @var \Kitodo\Dlf\Configuration\UseGroupsConfiguration
      */
-    protected array $useGroups = [];
+    protected UseGroupsConfiguration $useGroupsConfiguration;
 
     /**
      * @access protected
@@ -619,20 +620,6 @@ public function getPhysicalPage(string $logicalPage): int
         return 1;
     }
 
-    /**
-     * Get the configuration for given use group.
-     *
-     * @access protected
-     *
-     * @param string $use
-     *
-     * @return array|string
-     */
-    protected function getUseGroup(string $use)
-    {
-        return array_key_exists($use, $this->getUseGroups()) ? $this->useGroups[$use] : [];
-    }
-
     /**
      * This determines a title for the given document
      *
@@ -759,37 +746,6 @@ public function getStructureDepth(string $logId)
         return $this->getTreeDepth($this->magicGetTableOfContents(), 1, $logId);
     }
 
-    /**
-     * Get the configuration for use groups.
-     *
-     * @access protected
-     *
-     * @return array
-     */
-    protected function getUseGroups(): array
-    {
-        if (empty($this->useGroups)) {
-            // Get configured USE attributes.
-            $extConf = GeneralUtility::makeInstance(ExtensionConfiguration::class)->get(self::$extKey, 'files');
-
-            $configKeys = [
-                'fileGrpImages',
-                'fileGrpThumbs',
-                'fileGrpDownload',
-                'fileGrpFulltext',
-                'fileGrpAudio',
-                'fileGrpScore'
-            ];
-
-            foreach ($configKeys as $key) {
-                if (!empty($extConf[$key])) {
-                    $this->useGroups[$key] = GeneralUtility::trimExplode(',', $extConf[$key]);
-                }
-            }
-        }
-        return $this->useGroups;
-    }
-
     /**
      * Load XML file / IIIF resource from URL
      *
@@ -1140,6 +1096,7 @@ protected function _setCPid(int $value): void
     protected function __construct(int $pid, string $location, $preloadedDocument, array $settings = [])
     {
         $this->pid = $pid;
+        $this->useGroupsConfiguration = UseGroupsConfiguration::getInstance();
         $this->setPreloadedDocument($preloadedDocument);
         $this->init($location, $settings);
         $this->establishRecordId($pid);
diff --git a/Classes/Common/FullTextReader.php b/Classes/Common/FullTextReader.php
index 02a6c7661..e3f060d74 100644
--- a/Classes/Common/FullTextReader.php
+++ b/Classes/Common/FullTextReader.php
@@ -58,13 +58,13 @@ public function getFromXml(string $id, array $fileLocations, $physicalStructureN
     {
         $fullText = '';
 
-        $fileGrpsFulltext = $this->getFullTextFileGroups();
+        $useGroupsFulltext = $this->getFullTextUseGroups();
         $textFormat = "";
         if (!empty($physicalStructureNode)) {
-            while ($fileGrpFulltext = array_shift($fileGrpsFulltext)) {
-                if (!empty($physicalStructureNode['files'][$fileGrpFulltext])) {
+            while ($useGroupFulltext = array_shift($useGroupsFulltext)) {
+                if (!empty($physicalStructureNode['files'][$useGroupFulltext])) {
                     // Get full text file.
-                    $fileContent = GeneralUtility::getUrl($fileLocations[$fileGrpFulltext]);
+                    $fileContent = GeneralUtility::getUrl($fileLocations[$useGroupFulltext]);
                     if ($fileContent !== false) {
                         $textFormat = $this->getTextFormat($fileContent);
                     } else {
@@ -128,10 +128,10 @@ private function getRawTextFromClass(string $fileContent, string $textFormat): s
      *
      * @return array
      */
-    private function getFullTextFileGroups(): array
+    private function getFullTextUseGroups(): array
     {
         $extConf = GeneralUtility::makeInstance(ExtensionConfiguration::class)->get('dlf', 'files');
-        return GeneralUtility::trimExplode(',', $extConf['fileGrpFulltext']);
+        return GeneralUtility::trimExplode(',', $extConf['useGroupsFulltext']);
     }
 
     /**
diff --git a/Classes/Common/IiifManifest.php b/Classes/Common/IiifManifest.php
index 44e245d4b..48db490e1 100644
--- a/Classes/Common/IiifManifest.php
+++ b/Classes/Common/IiifManifest.php
@@ -223,8 +223,8 @@ protected function magicGetPhysicalStructure(): array
             $this->setFileUseDownload($iiifId, $this->iiif);
             $this->setFileUseFulltext($iiifId, $this->iiif);
 
-            $fileUseThumbs = $this->getUseGroup('fileGrpThumbs');
-            $fileUses = $this->getUseGroup('fileGrpImages');
+            $fileUseThumbs = $this->useGroupsConfiguration-> getThumbnail();
+            $fileUses = $this->useGroupsConfiguration-> getImage();
 
             if (!empty($this->iiif->getDefaultCanvases())) {
                 // canvases have not order property, but the context defines canveses as @list with a specific order, so we can provide an alternative
@@ -697,16 +697,15 @@ public function getFullText(string $id): string
             // Load physical structure ...
             $this->magicGetPhysicalStructure();
             // ... and extension configuration.
-            $extConf = GeneralUtility::makeInstance(ExtensionConfiguration::class)->get(self::$extKey);
-            $fileGrpsFulltext = $this->getUseGroup('fileGrpFulltext');
+            $useGroups = $this->useGroupsConfiguration->getFulltext();
 
             $physicalStructureNode = $this->physicalStructureInfo[$id];
             if (!empty($physicalStructureNode)) {
-                while ($fileGrpFulltext = array_shift($fileGrpsFulltext)) {
-                    if (!empty($physicalStructureNode['files'][$fileGrpFulltext])) {
+                while ($useGroup = array_shift($useGroups)) {
+                    if (!empty($physicalStructureNode['files'][$useGroup])) {
                         $rawText = GeneralUtility::makeInstance(FullTextReader::class, $this->formats)->getFromXml(
                             $id,
-                            [$fileGrpFulltext => $this->getFileLocation($physicalStructureNode['files'][$fileGrpFulltext])],
+                            [$useGroup => $this->getFileLocation($physicalStructureNode['files'][$useGroup])],
                             $physicalStructureNode
                         );
                         break;
@@ -908,12 +907,12 @@ private function getIndexAnnotations(): int
      */
     private function setFileUseDownload(string $iiifId, $iiif): void
     {
-        $fileUseDownload = $this->getUseGroup('fileGrpDownload');
+        $useGroups = $this->useGroupsConfiguration->getDownload();
 
-        if (!empty($fileUseDownload)) {
+        if (!empty($useGroups)) {
             $docPdfRendering = $iiif->getRenderingUrlsForFormat('application/pdf');
             if (!empty($docPdfRendering)) {
-                $this->physicalStructureInfo[$iiifId]['files'][$fileUseDownload[0]] = $docPdfRendering[0];
+                $this->physicalStructureInfo[$iiifId]['files'][$useGroups[0]] = $docPdfRendering[0];
             }
         }
     }
@@ -930,16 +929,16 @@ private function setFileUseDownload(string $iiifId, $iiif): void
      */
     private function setFileUseFulltext(string $iiifId, $iiif): void
     {
-        $fileUseFulltext = $this->getUseGroup('fileGrpFulltext');
+        $useGroups = $this->useGroupsConfiguration->getFulltext();
 
-        if (!empty($fileUseFulltext)) {
+        if (!empty($useGroups)) {
             $alto = $iiif->getSeeAlsoUrlsForFormat('application/alto+xml');
             if (empty($alto)) {
                 $alto = $iiif->getSeeAlsoUrlsForProfile('http://www.loc.gov/standards/alto/', true);
             }
             if (!empty($alto)) {
                 $this->mimeTypes[$alto[0]] = 'application/alto+xml';
-                $this->physicalStructureInfo[$iiifId]['files'][$fileUseFulltext[0]] = $alto[0];
+                $this->physicalStructureInfo[$iiifId]['files'][$useGroups[0]] = $alto[0];
                 $this->hasFulltext = true;
                 $this->hasFulltextSet = true;
             }
diff --git a/Classes/Common/Indexer.php b/Classes/Common/Indexer.php
index 98d9bc92f..3ab9638e0 100644
--- a/Classes/Common/Indexer.php
+++ b/Classes/Common/Indexer.php
@@ -439,10 +439,10 @@ protected static function processPhysical(Document $document, int $page, array $
             $updateQuery = self::$solr->service->createUpdate();
             $solrDoc = self::getSolrDocument($updateQuery, $document, $physicalUnit, $fullText);
             $solrDoc->setField('page', $page);
-            $fileGrpsThumb = GeneralUtility::trimExplode(',', $extConf['fileGrpThumbs']);
-            while ($fileGrpThumb = array_shift($fileGrpsThumb)) {
-                if (!empty($physicalUnit['files'][$fileGrpThumb])) {
-                    $solrDoc->setField('thumbnail', $doc->getFileLocation($physicalUnit['files'][$fileGrpThumb]));
+            $useGroupsThumbnail = GeneralUtility::trimExplode(',', $extConf['Thumbnail']);
+            while ($useGroupThumbnail = array_shift($useGroupsThumbnail)) {
+                if (!empty($physicalUnit['files'][$useGroupThumbnail])) {
+                    $solrDoc->setField('thumbnail', $doc->getFileLocation($physicalUnit['files'][$useGroupThumbnail]));
                     break;
                 }
             }
diff --git a/Classes/Common/MetsDocument.php b/Classes/Common/MetsDocument.php
index 043206ecf..bce66c8bd 100644
--- a/Classes/Common/MetsDocument.php
+++ b/Classes/Common/MetsDocument.php
@@ -23,7 +23,6 @@
 use TYPO3\CMS\Core\Database\Query\Restriction\HiddenRestriction;
 use TYPO3\CMS\Core\Log\LogManager;
 use TYPO3\CMS\Core\Utility\GeneralUtility;
-use Ubl\Iiif\Tools\IiifHelper;
 use Ubl\Iiif\Services\AbstractImageService;
 
 /**
@@ -480,22 +479,17 @@ private function getPage(array &$details, ?SimpleXMLElement $metsPointers): void
      */
     private function getThumbnail(string $id = '')
     {
-        $fileGrpsThumb = $this->getUseGroup('fileGrpThumbs');
-
+        $useGroups = $this->useGroupsConfiguration->getThumbnail();
         $thumbnail = null;
 
         if (!empty($this->physicalStructure)) {
             // There is a physical structure (no anchor or year mets).
-            while ($fileGrpThumb = array_shift($fileGrpsThumb)) {
+            while ($useGroup = array_shift($useGroups) && $thumbnail == null) {
                 if (empty($id)) {
-                    $thumbnail = $this->physicalStructureInfo[$this->physicalStructure[1]]['files'][$fileGrpThumb] ?? null;
+                    $thumbnail = $this->physicalStructureInfo[$this->physicalStructure[1]]['files'][$useGroup] ?? null;
                 } else {
                     $parentId = $this->smLinks['l2p'][$id][0] ?? null;
-                    $thumbnail = $this->physicalStructureInfo[$parentId]['files'][$fileGrpThumb] ?? null;
-                }
-
-                if (!empty($thumbnail)) {
-                    break;
+                    $thumbnail = $this->physicalStructureInfo[$parentId]['files'][$useGroup] ?? null;
                 }
             }
         }
@@ -1125,15 +1119,13 @@ public function getFullText(string $id): string
         $this->ensureHasFulltextIsSet();
 
         if ($this->hasFulltext) {
-            $extConf = GeneralUtility::makeInstance(ExtensionConfiguration::class)->get(self::$extKey, 'files');
-            $fileGrpsFulltext = GeneralUtility::trimExplode(',', $extConf['fileGrpFulltext']);
-
+            $useGroups = $this->useGroupsConfiguration->getFulltext();
             $physicalStructureNode = $this->physicalStructureInfo[$id];
-
             $fileLocations = [];
+
             if (!empty($physicalStructureNode)) {
-                while ($fileGrpFulltext = array_shift($fileGrpsFulltext)) {
-                    $fileLocations[$fileGrpFulltext] = $this->getFileLocation($physicalStructureNode['files'][$fileGrpFulltext]);
+                while ($useGroup = array_shift($useGroups)) {
+                    $fileLocations[$useGroup] = $this->getFileLocation($physicalStructureNode['files'][$useGroup]);
                 }
             }
 
@@ -1206,8 +1198,8 @@ protected function ensureHasFulltextIsSet(): void
     {
         // Are there any fulltext files available?
         if (
-            !empty($this->getUseGroup('fileGrpFulltext'))
-            && array_intersect($this->getUseGroup('fileGrpFulltext'), $this->fileGrps) !== []
+            !empty($this->useGroupsConfiguration->getFulltext())
+            && array_intersect($this->useGroupsConfiguration->getFulltext(), $this->fileGrps) !== []
         ) {
             $this->hasFulltext = true;
         }
@@ -1351,7 +1343,7 @@ protected function processMdSec(SimpleXMLElement $element): ?array
     protected function magicGetFileGrps(): array
     {
         if (!$this->fileGrpsLoaded) {
-            foreach (array_values($this->getUseGroups()) as $useGroups) {
+            foreach (array_values($this->useGroupsConfiguration->get()) as $useGroups) {
                 foreach ($useGroups as $useGroup) {
                     // Perform XPath query for each configured USE attribute
                     $fileGrps = $this->mets->xpath("./mets:fileSec/mets:fileGrp[@USE='$useGroup']");
@@ -1564,7 +1556,7 @@ protected function magicGetThumbnail(): string
                 return $this->thumbnail;
             }
 
-            if (empty($this->getUseGroup('fileGrpThumbs'))) {
+            if (empty($this->useGroupsConfiguration->getThumbnail())) {
                 $this->logger->warning('No fileGrp for thumbnails specified');
                 $this->thumbnailLoaded = true;
                 return $this->thumbnail;
@@ -1603,17 +1595,17 @@ protected function magicGetThumbnail(): string
                 // Load smLinks.
                 $this->magicGetSmLinks();
                 // Get thumbnail location.
-                $fileGrpsThumb = $this->getUseGroup('fileGrpThumbs');
-                while ($fileGrpThumb = array_shift($fileGrpsThumb)) {
+                $useGroups = $this->useGroupsConfiguration->getThumbnail();
+                while ($useGroup = array_shift($useGroups)) {
                     if (
                         $this->magicGetPhysicalStructure()
                         && !empty($this->smLinks['l2p'][$strctId])
-                        && !empty($this->physicalStructureInfo[$this->smLinks['l2p'][$strctId][0]]['files'][$fileGrpThumb])
+                        && !empty($this->physicalStructureInfo[$this->smLinks['l2p'][$strctId][0]]['files'][$useGroup])
                     ) {
-                        $this->thumbnail = $this->getFileLocation($this->physicalStructureInfo[$this->smLinks['l2p'][$strctId][0]]['files'][$fileGrpThumb]);
+                        $this->thumbnail = $this->getFileLocation($this->physicalStructureInfo[$this->smLinks['l2p'][$strctId][0]]['files'][$useGroup]);
                         break;
-                    } elseif (!empty($this->physicalStructureInfo[$this->physicalStructure[1]]['files'][$fileGrpThumb])) {
-                        $this->thumbnail = $this->getFileLocation($this->physicalStructureInfo[$this->physicalStructure[1]]['files'][$fileGrpThumb]);
+                    } elseif (!empty($this->physicalStructureInfo[$this->physicalStructure[1]]['files'][$useGroup])) {
+                        $this->thumbnail = $this->getFileLocation($this->physicalStructureInfo[$this->physicalStructure[1]]['files'][$useGroup]);
                         break;
                     }
                 }
diff --git a/Classes/Configuration/UseGroupsConfiguration.php b/Classes/Configuration/UseGroupsConfiguration.php
new file mode 100644
index 000000000..d31993cc2
--- /dev/null
+++ b/Classes/Configuration/UseGroupsConfiguration.php
@@ -0,0 +1,179 @@
+<?php
+
+/**
+ * (c) Kitodo. Key to digital objects e.V. <contact@kitodo.org>
+ *
+ * This file is part of the Kitodo and TYPO3 projects.
+ *
+ * @license GNU General Public License version 3 or later.
+ * For the full copyright and license information, please read the
+ * LICENSE.txt file that was distributed with this source code.
+ */
+
+namespace Kitodo\Dlf\Configuration;
+
+use TYPO3\CMS\Core\Configuration\ExtensionConfiguration;
+use TYPO3\CMS\Core\Utility\GeneralUtility;
+
+/**
+ * Undocumented class
+ */
+class UseGroupsConfiguration
+{
+
+    /**
+     * @access private
+     * @var ?UseGroupsConfiguration The instance of singleton.
+     */
+    private static $instance = null;
+
+    /**
+     * @access private
+     * @var array The array of configured USE groups.
+     */
+    private array $useGroups = [];
+
+    /**
+     * Constructor for singleton.
+     *
+     * @access private
+     *
+     * @return void
+     */
+    private function __construct()
+    {
+        // Get configured USE attributes.
+        $extConf = GeneralUtility::makeInstance(ExtensionConfiguration::class)->get('dlf', 'files');
+
+        $configKeys = [
+            'useGroupsImage',
+            'useGroupsThumbs',
+            'useGroupsDownload',
+            'useGroupsFulltext',
+            'useGroupsAudio',
+            'useGroupsScore'
+        ];
+
+        foreach ($configKeys as $key) {
+            if (!empty($extConf[$key])) {
+                $this->useGroups[$key] = GeneralUtility::trimExplode(',', $extConf[$key]);
+            }
+        }
+    }
+
+    /**
+     * Get the instance of singleton.
+     *
+     * @access public
+     *
+     * @return UseGroupsConfiguration
+     */
+    public static function getInstance(): UseGroupsConfiguration
+    {
+        if (self::$instance == null) {
+            self::$instance = new UseGroupsConfiguration();
+        }
+
+        return self::$instance;
+    }
+
+    /**
+     * Get the configuration for 'Audio' use groups type.
+     *
+     * @access public
+     *
+     * @return array
+     */
+    public function getAudio(): array
+    {
+        return $this->getByType('Audio');
+    }
+
+    /**
+     * Get the configuration for 'Download' use groups type.
+     *
+     * @access public
+     *
+     * @return array
+     */
+    public function getDownload(): array
+    {
+        return $this->getByType('Download');
+    }
+
+    /**
+     * Get the configuration for 'Fulltext' use groups type.
+     *
+     * @access public
+     *
+     * @return array
+     */
+    public function getFulltext(): array
+    {
+        return $this->getByType('Fulltext');
+    }
+
+    /**
+     * Get the configuration for 'Image' use groups type.
+     *
+     * @access public
+     *
+     * @return array
+     */
+    public function getImage(): array
+    {
+        return $this->getByType('Image');
+    }
+
+    /**
+     * Get the configuration for 'Score' use groups type.
+     *
+     * @access public
+     *
+     * @return array
+     */
+    public function getScore(): array
+    {
+        return $this->getByType('Score');
+    }
+
+    /**
+     * Get the configuration for 'Thumbnail' use groups type.
+     *
+     * @access public
+     *
+     * @return array
+     */
+    public function getThumbnail(): array
+    {
+        return $this->getByType('Thumbnail');
+    }
+
+    /**
+     * Get the configuration for use groups.
+     *
+     * @access public
+     *
+     * @return array
+     */
+    public function get(): array
+    {
+        return $this->useGroups;
+    }
+
+    /**
+     * Get the configuration for given use groups type.
+     *
+     * @access private
+     *
+     * @param string $useType possible values: 'Audio', 'Download', 'Fulltext', 'Image', 'Score', 'Thumbnail'
+     *
+     * @return array
+     */
+    //TODO: replace $useType with enum after dropping PHP 7.x support
+    private function getByType(string $useType): array
+    {
+        $useType = 'useGroups' . ucfirst($useType);
+        return array_key_exists($useType, $this->useGroups) ? $this->useGroups[$useType] : [];
+    }
+}
diff --git a/Classes/Controller/AbstractController.php b/Classes/Controller/AbstractController.php
index f1f5112f9..e2bb4111b 100644
--- a/Classes/Controller/AbstractController.php
+++ b/Classes/Controller/AbstractController.php
@@ -13,6 +13,7 @@
 
 use Kitodo\Dlf\Common\AbstractDocument;
 use Kitodo\Dlf\Common\Helper;
+use Kitodo\Dlf\Configuration\UseGroupsConfiguration;
 use Kitodo\Dlf\Domain\Model\Document;
 use Kitodo\Dlf\Domain\Repository\DocumentRepository;
 use Psr\Http\Message\ResponseInterface;
@@ -97,6 +98,14 @@ public function injectDocumentRepository(DocumentRepository $documentRepository)
      */
     protected int $pageUid;
 
+    /**
+     * Holds the configured useGroups as array.
+     *
+     * @access protected
+     * @var \Kitodo\Dlf\Configuration\UseGroupsConfiguration
+     */
+    protected UseGroupsConfiguration $useGroupsConfiguration;
+
     /**
      * Initialize the plugin controller
      *
@@ -203,6 +212,18 @@ protected function configureProxyUrl(string &$url): void
             ->build();
     }
 
+    /**
+     * Checks if doc of its fulltext is missing or is empty (no pages)
+     *
+     * @access protected
+     *
+     * @return bool
+     */
+    protected function isDocOrFulltextMissingOrEmpty(): bool
+    {
+        return $this->isDocMissingOrEmpty() || empty($this->useGroupsConfiguration->getFulltext());
+    }
+
     /**
      * Checks if doc is missing or is empty (no pages)
      *
diff --git a/Classes/Controller/AudioPlayerController.php b/Classes/Controller/AudioPlayerController.php
index 7688ce255..0bda30c13 100644
--- a/Classes/Controller/AudioPlayerController.php
+++ b/Classes/Controller/AudioPlayerController.php
@@ -86,11 +86,11 @@ public function mainAction(): ResponseInterface
         $this->setDefaultPage();
 
         // Check if there are any audio files available.
-        $fileGrpsAudio = GeneralUtility::trimExplode(',', $this->extConf['files']['fileGrpAudio']);
-        while ($fileGrpAudio = array_shift($fileGrpsAudio)) {
+        $useGroups = $this->useGroupsConfiguration->getAudio();
+        while ($useGroup = array_shift($useGroups)) {
             $physicalStructureInfo = $this->document->getCurrentDocument()->physicalStructureInfo[$this->document->getCurrentDocument()->physicalStructure[$this->requestData['page'] ?? 0]];
-            if (array_key_exists($fileGrpAudio, $physicalStructureInfo['files'])) {
-                $fileId = $physicalStructureInfo['files'][$fileGrpAudio];
+            if (array_key_exists($useGroup, $physicalStructureInfo['files'])) {
+                $fileId = $physicalStructureInfo['files'][$useGroup];
                 if (!empty($fileId)) {
                     // Get audio data.
                     $file = $this->document->getCurrentDocument()->getFileInfo($fileId);
diff --git a/Classes/Controller/PageGridController.php b/Classes/Controller/PageGridController.php
index ce7488afd..d85eda0b2 100644
--- a/Classes/Controller/PageGridController.php
+++ b/Classes/Controller/PageGridController.php
@@ -38,7 +38,7 @@ public function mainAction(): ResponseInterface
         $this->loadDocument();
         if (
             $this->isDocMissingOrEmpty()
-            || empty($this->extConf['files']['fileGrpThumbs'])
+            || empty($this->useGroupsConfiguration->getThumbnail())
         ) {
             // Quit without doing anything if required variables are not set.
             return $this->htmlResponse();
@@ -92,12 +92,12 @@ protected function getEntry(int $number): array
         $entry['thumbnail'] = '';
 
         // Get thumbnail or placeholder.
-        $fileGrpsThumb = GeneralUtility::trimExplode(',', $this->extConf['files']['fileGrpThumbs']);
+        $useGroups = $this->useGroupsConfiguration->getThumbnail();
         if (is_array($this->document->getCurrentDocument()->physicalStructureInfo[$this->document->getCurrentDocument()->physicalStructure[$number]]['files'])) {
-            if (array_intersect($fileGrpsThumb, array_keys($this->document->getCurrentDocument()->physicalStructureInfo[$this->document->getCurrentDocument()->physicalStructure[$number]]['files'])) !== []) {
-                while ($fileGrpThumb = array_shift($fileGrpsThumb)) {
-                    if (!empty($this->document->getCurrentDocument()->physicalStructureInfo[$this->document->getCurrentDocument()->physicalStructure[$number]]['files'][$fileGrpThumb])) {
-                        $entry['thumbnail'] = $this->document->getCurrentDocument()->getFileLocation($this->document->getCurrentDocument()->physicalStructureInfo[$this->document->getCurrentDocument()->physicalStructure[$number]]['files'][$fileGrpThumb]);
+            if (array_intersect($useGroups, array_keys($this->document->getCurrentDocument()->physicalStructureInfo[$this->document->getCurrentDocument()->physicalStructure[$number]]['files'])) !== []) {
+                while ($useGroup = array_shift($useGroups)) {
+                    if (!empty($this->document->getCurrentDocument()->physicalStructureInfo[$this->document->getCurrentDocument()->physicalStructure[$number]]['files'][$useGroup])) {
+                        $entry['thumbnail'] = $this->document->getCurrentDocument()->getFileLocation($this->document->getCurrentDocument()->physicalStructureInfo[$this->document->getCurrentDocument()->physicalStructure[$number]]['files'][$useGroup]);
                         break;
                     }
                 }
diff --git a/Classes/Controller/PageViewController.php b/Classes/Controller/PageViewController.php
index 1dd6bd808..fdf822256 100644
--- a/Classes/Controller/PageViewController.php
+++ b/Classes/Controller/PageViewController.php
@@ -383,14 +383,14 @@ protected function getScore(int $page, MetsDocument $specificDoc = null)
             $doc = $this->document->getCurrentDocument();
         }
         if ($doc instanceof MetsDocument) {
-            $fileGrpsScores = GeneralUtility::trimExplode(',', $this->extConf['files']['fileGrpScore']);
+            $useGroups = $this->useGroupsConfiguration->getScore();;
 
             $pageId = $doc->physicalStructure[$page];
             $files = $doc->physicalStructureInfo[$pageId]['files'] ?? [];
 
-            foreach ($fileGrpsScores as $fileGrpScore) {
-                if (isset($files[$fileGrpScore])) {
-                    $loc = $files[$fileGrpScore];
+            foreach ($useGroups as $useGroup) {
+                if (isset($files[$useGroup])) {
+                    $loc = $files[$useGroup];
                     break;
                 }
             }
@@ -419,7 +419,7 @@ protected function getScore(int $page, MetsDocument $specificDoc = null)
         }
 
         if (empty($score)) {
-            $this->logger->notice('No score file found for page "' . $page . '" in fileGrps "' . ($this->extConf['files']['fileGrpScore'] ?? '') . '"');
+            $this->logger->notice('No score file found for page "' . $page . '" in fileGrps "' . ($this->extConf['files']['useGroupScore'] ?? '') . '"');
         }
         return $score;
     }
@@ -437,12 +437,12 @@ protected function getFulltext(int $page): array
     {
         $fulltext = [];
         // Get fulltext link.
-        $fileGrpsFulltext = GeneralUtility::trimExplode(',', $this->extConf['files']['fileGrpFulltext']);
-        while ($fileGrpFulltext = array_shift($fileGrpsFulltext)) {
+        $useGroups = $this->useGroupsConfiguration->getFulltext();
+        while ($useGroup = array_shift($useGroups)) {
             $physicalStructureInfo = $this->document->getCurrentDocument()->physicalStructureInfo[$this->document->getCurrentDocument()->physicalStructure[$page]];
             $files = $physicalStructureInfo['files'];
-            if (!empty($files[$fileGrpFulltext])) {
-                $file = $this->document->getCurrentDocument()->getFileInfo($files[$fileGrpFulltext]);
+            if (!empty($files[$useGroup])) {
+                $file = $this->document->getCurrentDocument()->getFileInfo($files[$useGroup]);
                 $fulltext['url'] = $file['location'];
                 if ($this->settings['useInternalProxy']) {
                     $this->configureProxyUrl($fulltext['url']);
@@ -450,11 +450,11 @@ protected function getFulltext(int $page): array
                 $fulltext['mimetype'] = $file['mimeType'];
                 break;
             } else {
-                $this->logger->notice('No full-text file found for page "' . $page . '" in fileGrp "' . $fileGrpFulltext . '"');
+                $this->logger->notice('No full-text file found for page "' . $page . '" in fileGrp "' . $useGroup . '"');
             }
         }
         if (empty($fulltext)) {
-            $this->logger->notice('No full-text file found for page "' . $page . '" in fileGrps "' . $this->extConf['files']['fileGrpFulltext'] . '"');
+            $this->logger->notice('No full-text file found for page "' . $page . '" in fileGrps "' . ($this->extConf['files']['useGroupFulltext'] ?? '') . '"');
         }
         return $fulltext;
     }
@@ -631,11 +631,11 @@ protected function getImage(int $page, MetsDocument $specificDoc = null): array
     {
         $image = [];
         // Get @USE value of METS fileGrp.
-        $fileGrpsImages = GeneralUtility::trimExplode(',', $this->extConf['files']['fileGrpImages']);
+        $useGroups = $this->useGroupsConfiguration->getImage();
 
-        foreach ($fileGrpsImages as $fileGrpImages) {
+        foreach ($useGroups as $useGroup) {
             // Get file info for the specific page and file group
-            $file = $this->fetchFileInfo($page, $fileGrpImages, $specificDoc);
+            $file = $this->fetchFileInfo($page, $useGroup, $specificDoc);
             if ($file && Helper::filterFilesByMimeType($file, ['image', 'application'], ['IIIF', 'IIP', 'ZOOMIFY'], 'mimeType')) {
                 $image['url'] = $file['location'];
                 $image['mimetype'] = $file['mimeType'];
@@ -647,12 +647,12 @@ protected function getImage(int $page, MetsDocument $specificDoc = null): array
                 }
                 break;
             } else {
-                $this->logger->notice('No image file found for page "' . $page . '" in fileGrp "' . $fileGrpImages . '"');
+                $this->logger->notice('No image file found for page "' . $page . '" in fileGrp "' . $useGroup . '"');
             }
         }
 
         if (empty($image)) {
-            $this->logger->warning('No image file found for page "' . $page . '" in fileGrps "' . $this->extConf['files']['fileGrpImages'] . '"');
+            $this->logger->warning('No image file found for page "' . $page . '" in fileGrps "' . ($this->extConf['files']['useGroupImage'] ?? '') . '"');
         }
 
         return $image;
diff --git a/Classes/Controller/ToolboxController.php b/Classes/Controller/ToolboxController.php
index cb93c6d62..0bf9c8188 100644
--- a/Classes/Controller/ToolboxController.php
+++ b/Classes/Controller/ToolboxController.php
@@ -142,7 +142,7 @@ private function renderToolByName(string $tool): void
     public function getImage(int $page): array
     {
         // Get @USE value of METS fileGroup.
-        $image = $this->getFile($page, GeneralUtility::trimExplode(',', $this->settings['fileGrpsImageDownload']));
+        $image = $this->getFile($page, $this->useGroupsConfiguration->getImage());
         switch ($image['mimetype']) {
             case 'image/jpeg':
                 $image['mimetypeLabel'] = ' (JPG)';
@@ -194,10 +194,7 @@ private function renderAnnotationTool(): void
      */
     private function renderFulltextDownloadTool(): void
     {
-        if (
-            $this->isDocMissingOrEmpty()
-            || empty($this->extConf['files']['fileGrpFulltext'])
-        ) {
+        if ($this->isDocOrFulltextMissingOrEmpty()) {
             // Quit without doing anything if required variables are not set.
             return;
         }
@@ -218,10 +215,7 @@ private function renderFulltextDownloadTool(): void
      */
     private function renderFulltextTool(): void
     {
-        if (
-            $this->isDocMissingOrEmpty()
-            || empty($this->extConf['files']['fileGrpFulltext'])
-        ) {
+        if ($this->isDocOrFulltextMissingOrEmpty()) {
             // Quit without doing anything if required variables are not set.
             return;
         }
@@ -245,7 +239,7 @@ public function renderScoreTool()
     {
         if (
             $this->isDocMissingOrEmpty()
-            || empty($this->extConf['files']['fileGrpScore'])
+            || empty($this->useGroupsConfiguration->getScore())
         ) {
             // Quit without doing anything if required variables are not set.
             return;
@@ -257,10 +251,10 @@ public function renderScoreTool()
             $currentPhysPage = $this->document->getCurrentDocument()->physicalStructure[1];
         }
 
-        $fileGrpsScores = GeneralUtility::trimExplode(',', $this->extConf['files']['fileGrpScore']);
-        foreach ($fileGrpsScores as $fileGrpScore) {
-            if ($this->document->getCurrentDocument()->physicalStructureInfo[$currentPhysPage]['files'][$fileGrpScore]) {
-                $scoreFile = $this->document->getCurrentDocument()->physicalStructureInfo[$currentPhysPage]['files'][$fileGrpScore];
+        $useGroups = $this->useGroupsConfiguration->getScore();
+        foreach ($useGroups as $useGroup) {
+            if ($this->document->getCurrentDocument()->physicalStructureInfo[$currentPhysPage]['files'][$useGroup]) {
+                $scoreFile = $this->document->getCurrentDocument()->physicalStructureInfo[$currentPhysPage]['files'][$useGroup];
             }
         }
         if (!empty($scoreFile)) {
@@ -283,7 +277,7 @@ private function renderImageDownloadTool(): void
     {
         if (
             $this->isDocMissingOrEmpty()
-            || empty($this->settings['fileGrpsImageDownload'])
+            || empty($this->useGroupsConfiguration->getImage())
         ) {
             // Quit without doing anything if required variables are not set.
             return;
@@ -362,6 +356,7 @@ private function renderImageManipulationTool(): void
      */
     private function renderModelDownloadTool(): void
     {
+        // TODO: missing fileGrpsModelDownload, should be added to ext config as useGroupsModelDownload
         if (
             $this->isDocMissingOrEmpty()
             || empty($this->settings['fileGrpsModelDownload'])
@@ -389,7 +384,7 @@ private function renderPdfDownloadTool(): void
     {
         if (
             $this->isDocMissingOrEmpty()
-            || empty($this->extConf['files']['fileGrpDownload'])
+            || empty($this->useGroupsConfiguration->getDownload())
         ) {
             // Quit without doing anything if required variables are not set.
             return;
@@ -416,14 +411,14 @@ private function getPageLink(): array
         $secondPageLink = '';
         $pageLinkArray = [];
         $pageNumber = $this->requestData['page'] ?? 0;
-        $fileGrpsDownload = GeneralUtility::trimExplode(',', $this->extConf['files']['fileGrpDownload']);
+        $useGroups = $this->useGroupsConfiguration->getDownload();
         // Get image link.
-        while ($fileGrpDownload = array_shift($fileGrpsDownload)) {
-            $firstFileGroupDownload = $this->currentDocument->physicalStructureInfo[$this->currentDocument->physicalStructure[$pageNumber]]['files'][$fileGrpDownload] ?? [];
+        while ($useGroup = array_shift($useGroups)) {
+            $firstFileGroupDownload = $this->currentDocument->physicalStructureInfo[$this->currentDocument->physicalStructure[$pageNumber]]['files'][$useGroup] ?? [];
             if (!empty($firstFileGroupDownload)) {
                 $firstPageLink = $this->currentDocument->getFileLocation($firstFileGroupDownload);
                 // Get second page, too, if double page view is activated.
-                $secondFileGroupDownload = $this->currentDocument->physicalStructureInfo[$this->currentDocument->physicalStructure[$pageNumber + 1]]['files'][$fileGrpDownload];
+                $secondFileGroupDownload = $this->currentDocument->physicalStructureInfo[$this->currentDocument->physicalStructure[$pageNumber + 1]]['files'][$useGroup];
                 if (
                     $this->requestData['double']
                     && $pageNumber < $this->currentDocument->numPages
@@ -438,7 +433,7 @@ private function getPageLink(): array
             empty($firstPageLink)
             && empty($secondPageLink)
         ) {
-            $this->logger->warning('File not found in fileGrps "' . $this->extConf['files']['fileGrpDownload'] . '"');
+            $this->logger->warning('File not found in fileGrps "' . $this->extConf['files']['useGroupsDownload'] . '"');
         }
 
         if (!empty($firstPageLink)) {
@@ -460,23 +455,23 @@ private function getPageLink(): array
     private function getWorkLink(): string
     {
         $workLink = '';
-        $fileGrpsDownload = GeneralUtility::trimExplode(',', $this->extConf['files']['fileGrpDownload']);
+        $useGroups = $this->useGroupsConfiguration->getDownload();
         // Get work link.
-        while ($fileGrpDownload = array_shift($fileGrpsDownload)) {
-            $fileGroupDownload = $this->currentDocument->physicalStructureInfo[$this->currentDocument->physicalStructure[0]]['files'][$fileGrpDownload] ?? [];
+        while ($useGroup = array_shift($useGroups)) {
+            $fileGroupDownload = $this->currentDocument->physicalStructureInfo[$this->currentDocument->physicalStructure[0]]['files'][$useGroup] ?? [];
             if (!empty($fileGroupDownload)) {
                 $workLink = $this->currentDocument->getFileLocation($fileGroupDownload);
                 break;
             } else {
                 $details = $this->currentDocument->getLogicalStructure($this->currentDocument->toplevelId);
-                if (!empty($details['files'][$fileGrpDownload])) {
-                    $workLink = $this->currentDocument->getFileLocation($details['files'][$fileGrpDownload]);
+                if (!empty($details['files'][$useGroup])) {
+                    $workLink = $this->currentDocument->getFileLocation($details['files'][$useGroup]);
                     break;
                 }
             }
         }
         if (empty($workLink)) {
-            $this->logger->warning('File not found in fileGrps "' . $this->extConf['files']['fileGrpDownload'] . '"');
+            $this->logger->warning('File not found in fileGrps "' . $this->extConf['files']['useGroupsDownload'] . '"');
         }
         return $workLink;
     }
@@ -492,8 +487,7 @@ private function getWorkLink(): string
     private function renderSearchInDocumentTool(): void
     {
         if (
-            $this->isDocMissingOrEmpty()
-            || empty($this->extConf['files']['fileGrpFulltext'])
+            $this->isDocOrFulltextMissingOrEmpty()
             || empty($this->settings['solrcore'])
         ) {
             // Quit without doing anything if required variables are not set.
@@ -588,11 +582,11 @@ private function getEncryptedCoreName(): string
      */
     private function isFullTextEmpty(): bool
     {
-        $fileGrpsFulltext = GeneralUtility::trimExplode(',', $this->extConf['files']['fileGrpFulltext']);
-        while ($fileGrpFulltext = array_shift($fileGrpsFulltext)) {
+        $useGroups = $this->useGroupsConfiguration->getFulltext();
+        while ($useGroup = array_shift($useGroups)) {
             if (isset($this->requestData['page'])) {
                 $files = $this->currentDocument->physicalStructureInfo[$this->currentDocument->physicalStructure[$this->requestData['page']]]['files'];
-                if (!empty($files[$fileGrpFulltext])) {
+                if (!empty($files[$useGroup])) {
                     return false;
                 }
             }
diff --git a/Configuration/FlexForms/Toolbox.xml b/Configuration/FlexForms/Toolbox.xml
index 55b71c82a..a11916c73 100644
--- a/Configuration/FlexForms/Toolbox.xml
+++ b/Configuration/FlexForms/Toolbox.xml
@@ -52,18 +52,6 @@
                             </config>
                         </TCEforms>
                     </settings.solrcore>
-                    <settings.fileGrpsImageDownload>
-                        <TCEforms>
-                            <exclude>1</exclude>
-                            <label>LLL:EXT:dlf/Resources/Private/Language/locallang_be.xlf:plugins.toolbox.flexform.fileGrps</label>
-                            <config>
-                                <type>input</type>
-                                <size>30</size>
-                                <max>30</max>
-                                <default>DEFAULT,MAX</default>
-                            </config>
-                        </TCEforms>
-                    </settings.fileGrpsImageDownload>
                 </el>
             </ROOT>
         </sDEF>
diff --git a/Documentation/Plugins/Index.rst b/Documentation/Plugins/Index.rst
index b2b898218..1d24f4495 100644
--- a/Documentation/Plugins/Index.rst
+++ b/Documentation/Plugins/Index.rst
@@ -974,12 +974,6 @@ Toolbox
        :ref:`t3tsref:data-type-integer`
    :Default:
 
- - :Property:
-       fileGrpsImageDownload
-   :Data Type:
-       `t3tsref:data-type-list`
-   :Default:
-       MIN,DEFAULT,MAX
 
 Fulltext Tool
 ^^^^^^^^^^^^^
diff --git a/Tests/Functional/FunctionalTestCase.php b/Tests/Functional/FunctionalTestCase.php
index 2a818f1b5..26c06b0f4 100644
--- a/Tests/Functional/FunctionalTestCase.php
+++ b/Tests/Functional/FunctionalTestCase.php
@@ -128,11 +128,11 @@ protected function getDlfConfiguration()
                 'requiredMetadataFields' => 'document_format'
             ],
             'files' => [
-                'fileGrpImages' => 'DEFAULT,MAX',
-                'fileGrpThumbs' => 'THUMBS',
-                'fileGrpDownload' => 'DOWNLOAD',
-                'fileGrpFulltext' => 'FULLTEXT',
-                'fileGrpAudio' => 'AUDIO'
+                'useGroupsImage' => 'DEFAULT,MAX',
+                'useGroupsThumbnail' => 'THUMBS',
+                'useGroupsDownload' => 'DOWNLOAD',
+                'useGroupsFulltext' => 'FULLTEXT',
+                'useGroupsAudio' => 'AUDIO'
             ],
             'solr' => [
                 'host' => getenv('dlfTestingSolrHost'),
diff --git a/ext_conf_template.txt b/ext_conf_template.txt
index 4813f62e5..18a2fa79f 100644
--- a/ext_conf_template.txt
+++ b/ext_conf_template.txt
@@ -18,18 +18,18 @@ general.unhideOnIndex = 0
 general.useExternalApisForMetadata = 0
 # cat=General; type=string; label=LLL:EXT:dlf/Resources/Private/Language/locallang_labels.xlf:config.general.requiredMetadataFields
 general.requiredMetadataFields = document_format,record_id
-# cat=Files; type=string; label=LLL:EXT:dlf/Resources/Private/Language/locallang_labels.xlf:config.files.fileGrpImages
-files.fileGrpImages = DEFAULT,MAX
-# cat=Files; type=string; label=LLL:EXT:dlf/Resources/Private/Language/locallang_labels.xlf:config.files.fileGrpThumbs
-files.fileGrpThumbs = THUMBS
-# cat=Files; type=string; label=LLL:EXT:dlf/Resources/Private/Language/locallang_labels.xlf:config.files.fileGrpDownload
-files.fileGrpDownload = DOWNLOAD
-# cat=Files; type=string; label=LLL:EXT:dlf/Resources/Private/Language/locallang_labels.xlf:config.files.fileGrpFulltext
-files.fileGrpFulltext = FULLTEXT
-# cat=Files; type=string; label=LLL:EXT:dlf/Resources/Private/Language/locallang_labels.xlf:config.files.fileGrpAudio
-files.fileGrpAudio = AUDIO
-# cat=Files; type=string; label=LLL:EXT:dlf/Resources/Private/Language/locallang_labels.xlf:config.files.fileGrpScore
-files.fileGrpScore = SCORE
+# cat=Files; type=string; label=LLL:EXT:dlf/Resources/Private/Language/locallang_labels.xlf:config.files.useGroupsAudio
+files.useGroupsAudio = AUDIO
+# cat=Files; type=string; label=LLL:EXT:dlf/Resources/Private/Language/locallang_labels.xlf:config.files.useGroupsImage
+files.useGroupsImage = DEFAULT,MAX
+# cat=Files; type=string; label=LLL:EXT:dlf/Resources/Private/Language/locallang_labels.xlf:config.files.useGroupsThumbnail
+files.useGroupsThumbnail = THUMBS
+# cat=Files; type=string; label=LLL:EXT:dlf/Resources/Private/Language/locallang_labels.xlf:config.files.useGroupsDownload
+files.useGroupsDownload = DOWNLOAD
+# cat=Files; type=string; label=LLL:EXT:dlf/Resources/Private/Language/locallang_labels.xlf:config.files.useGroupsFulltext
+files.useGroupsFulltext = FULLTEXT
+# cat=Files; type=string; label=LLL:EXT:dlf/Resources/Private/Language/locallang_labels.xlf:config.files.useGroupsScore
+files.useGroupsScore = SCORE
 # cat=IIIF; type=boolean; label=LLL:EXT:dlf/Resources/Private/Language/locallang_labels.xlf:config.iiif.indexAnnotations
 iiif.indexAnnotations = 0
 # cat=IIIF; type=int[1-2000]; label=LLL:EXT:dlf/Resources/Private/Language/locallang_labels.xlf:config.iiif.thumbnailWidth