TYPO3 Core

Please add an ID (or at least an unique class in the current frame) in file

\typo3\sysext\backend\Classes\Form\Container\FlexFormElementContainer.php

$html[] = '<div class="form-section" id="' . htmlspecialchars($flexFormFieldName) . '">';

I'm not sure if this relevant for the future (as mentioned here [[https://docs.typo3.org/m/typo3/reference-coreapi/10.4/en-us/ApiOverview/FormEngine/Rendering/Index.html]] in the first note, it should have vanished in v9?), but as this file is still present in v12 I guess this feature-request is still adequate for v11 + v12.

Reason behind this: we're working with several Flexforms (gridelements) and try to organize the form fields in the backend via CSS, as it's not possible to do this otherwise (afaik). It would help to distinguish the fields with specific id's or classes.

Other solutions are appreciated as I don't know if there's a smarter way.