A “scene grouping” topic already exists here: https://forum.gdevelop.io/t/scene-folders-for-organizing Please head over there to continue the discussion.
This idea was brought up like, three years ago and since the 3D editor released recently, I thought I’d re-bring it up as more of a QOL feature if anything.
But the concept is pretty much a right-click in the scene tab, and using similar code as the grouping in the events editor, it could be repurposed for grouping scenes in a neater, drop down style.
Ex.
•Levels
○A-1
○A-2
○A-3
•Dungeons
○A-D
○B-D
○C-D
•Movie
○MovieFirst
○MovieLastBad
○MovieLastGood