Hi! (if necrobumping this thread is not ok, I will create a new one)
(Edit: I am on version 12.2, which seems quite old, so maybe in a recent version the functionality I search for is easily available. For reference the solution in a recent version would be nice, too, even though I understand that it might not apply to 12.2).
I think I have the converse problem. Somehow, after (edit:) deleting a nested self-message further down in the diagram, the numbering in the upper parts got mixed up. Precisely, the self-messages are not numbered according to their nesting level, but to some parent numbering, altough the arrows look like everything is right. But moving the nested (but not correctly numbered) messages out of the nesting block, they actually act as they were on a parent level, and moving them back in they now keep being connected to the parent activity, not the nested one. Also, “resize-to-fit” of the nested activity shrinks it to its minimum size, leaving the wrongly numbered self message arrows strangely shifted to the right, as if there was that invisible nested activity they were coming from and pointing to.
Here are pictures of the wrong numbering, and of the shifted self messages after “resize-to-fit” on the nested activity (mixed into one picture due to upload restrictions):
Is there a way to move them back into the nested activity? Due to an unfortunate mix of an unconscious reflex of pressing “Ctrl-S” while trying to repair it, and the “undo” functionality crashing, I only have an older backup of the file.
Thank you for your time,