i apologize for the false start on last 1.50 update. But now it as been solved, and i'm happy to announce that the Rebevel is now fully UNDOABLE
v1.52 ------- 22/01/2020
Rebevel Now is fully Undoable. (no more save temp scene button)
Fixed an issue in the forms Files: Missing link in Pie Menu and Menu bar for Rebevel.
Best Regards, Franck