Remember for all of you that want a lot of UNDO functionality, it usually takes up a lot of memory. So be careful what you wish for, you might get it. LOL Anyway, my worst problem is going to save a pose I've worked on for a long time and instead of clicking the '+' I click the checkmark. Happens almost every day. Sigh. The thing to do is to save your pose to a pose dot first. But I usually forget.