- The three market Content Blocks preview as compact collapsible rows:

thumbnail of the actual image (hero background, intro image, insights
  cover), key copy in the summary line, full details expanded; card and
  intro-paragraph previews are wrapped in the same mechanism
- New SubmarketPluginPreview for vitec_usecaselist / vitec_productfeature /
  vitec_productlist: instead of bare standard boxes they now list the
  selected story titles (flagging stories that still lack a quote), the
  featured product and the hand-picked products in order
- Container-style collapse for whole page-module COLUMNS: a chevron at the
  right of every column header folds a section down to its title row,
  state kept per page and colPos in localStorage - the slot view of a
  sub-market page folds to six slim bands
- Previews sit under the page module's pointer-events lock and its
  click-to-edit layer: pointer events are re-enabled inside the collapse
  markup and the toggle runs on pointerdown in the capture phase
- Two more v14 removals fixed on the way, both latent in the OLDER preview
  classes too (Usecaseshow, Modelcard would have crashed the page module):
  GridColumnItem::getRecord() now returns a Domain\Record object, and
  StandaloneView is gone - previews normalize the record via a shared
  helper and render through the ViewFactory

packages/vitec/Classes/Preview/ModelcardPreviewRenderer.php

@@ -11,7 +11,6 @@ use TYPO3\CMS\Core\Database\ConnectionPool;
 use TYPO3\CMS\Core\Resource\ResourceFactory;
 use TYPO3\CMS\Core\Service\FlexFormService;
 use TYPO3\CMS\Core\Utility\GeneralUtility;
-use TYPO3\CMS\Fluid\View\StandaloneView;
 
 /**
  * Page-module preview for the VITEC Card plugin (vitec_modelcard):
@@ -45,7 +44,7 @@ class ModelcardPreviewRenderer extends StandardContentPreviewRenderer
     public function renderPageModulePreviewContent(GridColumnItem $item): string
     {
         try {
-            $record = $item->getRecord();
+            $record = $this->recordArray($item);
 
             $flexFormService = GeneralUtility::makeInstance(FlexFormService::class);
             $flexFormData = $flexFormService->convertFlexFormContentToArray($record['pi_flexform'] ?? '');
@@ -77,8 +76,12 @@ class ModelcardPreviewRenderer extends StandardContentPreviewRenderer
                 }
             }
 
-            $view = GeneralUtility::makeInstance(StandaloneView::class);
-            $view->setTemplatePathAndFilename('EXT:vitec/Resources/Private/Templates/Preview/Modelcard.html');
+            // v14: StandaloneView was removed - views come from the ViewFactory.
+            $view = GeneralUtility::makeInstance(\TYPO3\CMS\Core\View\ViewFactoryInterface::class)
+                ->create(new \TYPO3\CMS\Core\View\ViewFactoryData(
+                    templatePathAndFilename: 'EXT:vitec/Resources/Private/Templates/Preview/Modelcard.html',
+                    request: $GLOBALS['TYPO3_REQUEST'] ?? null,
+                ));
             $view->assignMultiple([
                 'typeLabel' => self::TYPE_LABELS[$modelType] ?? $modelType,
                 'layout' => $layout,
@@ -124,4 +127,21 @@ class ModelcardPreviewRenderer extends StandardContentPreviewRenderer
         }
         return '';
     }
+
+    /**
+     * v14: GridColumnItem::getRecord() returns a Domain\Record object, no
+     * longer an array (found 2026-10-02 - crashed the page module preview).
+     * Normalizes both shapes to the raw database array.
+     *
+     * @return array<string,mixed>
+     */
+    private function recordArray(GridColumnItem $item): array
+    {
+        $record = $item->getRecord();
+        if ($record instanceof \TYPO3\CMS\Core\Domain\Record) {
+            $raw = $record->getRawRecord();
+            return $raw !== null ? $raw->toArray() : [];
+        }
+        return (array)$record;
+    }
 }

packages/vitec/Classes/Preview/SubmarketPluginPreview.php

@@ -0,0 +1,129 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Evomedien\Vitec\Preview;
+
+use TYPO3\CMS\Backend\Preview\StandardContentPreviewRenderer;
+use TYPO3\CMS\Backend\View\BackendLayout\Grid\GridColumnItem;
+use TYPO3\CMS\Core\Database\Connection;
+use TYPO3\CMS\Core\Database\ConnectionPool;
+use TYPO3\CMS\Core\Service\FlexFormService;
+use TYPO3\CMS\Core\Utility\GeneralUtility;
+
+/**
+ * Collapsible page-module previews for the three sub-market plugin sections
+ * (Olli's wish 2026-10-02: every section collapsible, content visible):
+ *
+ *   vitec_usecaselist    -> selected story titles (+ "no quote" flag)
+ *   vitec_productfeature -> the featured product's title
+ *   vitec_productlist    -> hand-picked product titles / category info
+ *
+ * One class for all three - they only differ in how the FlexForm selection
+ * is resolved to titles.
+ */
+class SubmarketPluginPreview extends StandardContentPreviewRenderer
+{
+    public function renderPageModulePreviewContent(GridColumnItem $item): string
+    {
+        $record = $this->recordArray($item);
+        $flexFormData = GeneralUtility::makeInstance(FlexFormService::class)
+            ->convertFlexFormContentToArray((string)($record['pi_flexform'] ?? ''));
+        $settings = $flexFormData['settings'] ?? [];
+
+        $label = '';
+        $hint = '';
+        $items = [];
+        switch ((string)$record['CType']) {
+            case 'vitec_usecaselist':
+                $layout = (string)($settings['layout'] ?? 'grid');
+                $label = $layout === 'testimonials' ? 'Testimonials' : 'Success Stories';
+                $uids = GeneralUtility::intExplode(',', (string)($settings['usecases'] ?? ''), true);
+                foreach ($this->rows('tx_vitec_domain_model_usecase', $uids, ['quote']) as $row) {
+                    $items[] = $row['title'] . (trim((string)$row['quote']) === '' ? ' — ⚠ kein Zitat' : '');
+                }
+                $hint = $uids === [] ? 'alle Stories (' . $layout . ')' : count($items) . ' ausgewählt · ' . $layout;
+                break;
+            case 'vitec_productfeature':
+                $label = 'Featured Product';
+                $uid = (int)($settings['product'] ?? 0);
+                foreach ($this->rows('tx_vitec_domain_model_product', $uid > 0 ? [$uid] : []) as $row) {
+                    $items[] = $row['title'];
+                }
+                $hint = $items[0] ?? '⚠ kein Produkt gewählt';
+                break;
+            case 'vitec_productlist':
+                $label = 'Products';
+                $uids = GeneralUtility::intExplode(',', (string)($settings['selectedproducts'] ?? ''), true);
+                if ($uids !== []) {
+                    foreach ($this->rows('tx_vitec_domain_model_product', $uids) as $row) {
+                        $items[] = $row['title'];
+                    }
+                    $hint = count($items) . ' handverlesen';
+                } else {
+                    $hint = !empty($settings['allproducts']) ? 'alle Produkte' : 'nach Kategorie';
+                }
+                break;
+        }
+
+        // v14: StandaloneView was removed - views come from the ViewFactory.
+        $view = GeneralUtility::makeInstance(\TYPO3\CMS\Core\View\ViewFactoryInterface::class)
+            ->create(new \TYPO3\CMS\Core\View\ViewFactoryData(
+                templatePathAndFilename: 'EXT:vitec/Resources/Private/Templates/Preview/SubmarketSection.html',
+                request: $GLOBALS['TYPO3_REQUEST'] ?? null,
+            ));
+        $view->assignMultiple([
+            'label' => $label,
+            'hint' => $hint,
+            'items' => $items,
+            'header' => (string)($record['header'] ?? ''),
+        ]);
+        return $view->render();
+    }
+
+    /**
+     * Title rows for the given uids, in the given order.
+     *
+     * @param int[] $uids
+     * @param string[] $extraFields
+     * @return array<int,array<string,mixed>>
+     */
+    private function rows(string $table, array $uids, array $extraFields = []): array
+    {
+        if ($uids === []) {
+            return [];
+        }
+        $queryBuilder = GeneralUtility::makeInstance(ConnectionPool::class)->getQueryBuilderForTable($table);
+        $rows = $queryBuilder->select('uid', 'title', ...$extraFields)->from($table)
+            ->where(
+                $queryBuilder->expr()->in('uid', $queryBuilder->createNamedParameter($uids, Connection::PARAM_INT_ARRAY)),
+                $queryBuilder->expr()->eq('deleted', 0)
+            )
+            ->executeQuery()->fetchAllAssociative();
+        $byUid = array_column($rows, null, 'uid');
+        $ordered = [];
+        foreach ($uids as $uid) {
+            if (isset($byUid[$uid])) {
+                $ordered[] = $byUid[$uid];
+            }
+        }
+        return $ordered;
+    }
+
+    /**
+     * v14: GridColumnItem::getRecord() returns a Domain\Record object, no
+     * longer an array (found 2026-10-02 - crashed the page module preview).
+     * Normalizes both shapes to the raw database array.
+     *
+     * @return array<string,mixed>
+     */
+    private function recordArray(GridColumnItem $item): array
+    {
+        $record = $item->getRecord();
+        if ($record instanceof \TYPO3\CMS\Core\Domain\Record) {
+            $raw = $record->getRawRecord();
+            return $raw !== null ? $raw->toArray() : [];
+        }
+        return (array)$record;
+    }
+}

packages/vitec/Classes/Preview/UsecaseshowPluginPreview.php

@@ -8,7 +8,6 @@ use TYPO3\CMS\Backend\Preview\StandardContentPreviewRenderer;
 use TYPO3\CMS\Backend\View\BackendLayout\Grid\GridColumnItem;
 use TYPO3\CMS\Core\Service\FlexFormService;
 use TYPO3\CMS\Core\Utility\GeneralUtility;
-use TYPO3\CMS\Fluid\View\StandaloneView;
 use Evomedien\Vitec\Domain\Repository\UsecaseRepository;
 
 /**
@@ -22,10 +21,14 @@ class UsecaseshowPluginPreview extends StandardContentPreviewRenderer
      */
     public function renderPageModulePreviewContent(GridColumnItem $item): string
     {
-        $record = $item->getRecord();
+        $record = $this->recordArray($item);
         
-        $view = GeneralUtility::makeInstance(StandaloneView::class);
-        $view->setTemplatePathAndFilename('EXT:vitec/Resources/Private/Templates/Preview/Usecaseshow.html');
+        // v14: StandaloneView was removed - views come from the ViewFactory.
+        $view = GeneralUtility::makeInstance(\TYPO3\CMS\Core\View\ViewFactoryInterface::class)
+            ->create(new \TYPO3\CMS\Core\View\ViewFactoryData(
+                templatePathAndFilename: 'EXT:vitec/Resources/Private/Templates/Preview/Usecaseshow.html',
+                request: $GLOBALS['TYPO3_REQUEST'] ?? null,
+            ));
 
         // Parse FlexForm data
         $flexFormService = GeneralUtility::makeInstance(FlexFormService::class);
@@ -69,7 +72,7 @@ class UsecaseshowPluginPreview extends StandardContentPreviewRenderer
      */
     public function renderPageModulePreviewHeader(GridColumnItem $item): string
     {
-        $record = $item->getRecord();
+        $record = $this->recordArray($item);
         
         // Parse FlexForm to get usecase info for header
         $flexFormService = GeneralUtility::makeInstance(FlexFormService::class);
@@ -83,4 +86,21 @@ class UsecaseshowPluginPreview extends StandardContentPreviewRenderer
         
         return '<strong>🎯 Usecase Show Plugin</strong> <small style="color: orange;">(No usecase selected)</small>';
     }
+
+    /**
+     * v14: GridColumnItem::getRecord() returns a Domain\Record object, no
+     * longer an array (found 2026-10-02 - crashed the page module preview).
+     * Normalizes both shapes to the raw database array.
+     *
+     * @return array<string,mixed>
+     */
+    private function recordArray(GridColumnItem $item): array
+    {
+        $record = $item->getRecord();
+        if ($record instanceof \TYPO3\CMS\Core\Domain\Record) {
+            $raw = $record->getRawRecord();
+            return $raw !== null ? $raw->toArray() : [];
+        }
+        return (array)$record;
+    }
 }