An undo / Redo for the selection :)
When you select 50 lines(object)...if one miss all is to redo :D

Another thing : here bottom windows are "reclosed" but drawings stay alive and imposible to erase it!
So a "cleaner tool" for old drawings :)
Video who show a boolean union with persistant lines!
http://stephlx.free.fr/MoI/bool.avi
But for me (Pilou, all works cool) see the image

But not in this one :(

But If I remake an another that works again!

Ps Have you some plan for a "reccording script" of all actions when objects are modelized?
For replay the creation as a pedagogic and funny way :)

With all this thrad time of developpment will be * 3 :)

Pss For a grammatical point does the word "complaint" is convenient for you or "request" seems better?
(I can't change the title of the topic when I edit it)