(issue found and reported by a user in the Steam forum - 25/07/2023)
Small bug - could you check if this is a problem in the current Beta Build?:
In the Frame Editor's CTRL + J window, the vertical movement of the list does not trigger, when you directly drag the larger handle.
If this wasn't fixed yet, could you possibly fix this directly in one of the next Beta releases of Build 295 version? Thanks in advance.