Rule #1: There is no such thing as "Undo" in Poser. Sure, there is a menu labeled with that word, but 90% of the time it doesn't work and the other half of the time, it doesn't undo what you want it to undo. I will remember to ALWAYS save the scene before rendering. If I liked the previous change, I will save this file using a different name. If I want to "undo" the next pose, I will first go to Figure menu, then Memorize the figure (see rule #1). If I don't like the new pose, I can go back to Figure, then Restore. If I want to experiment with faces and expressions, I will also Figure, then Memorize the figure (see rule #1; see above rule). If I want to revert back to the current pose and there are mutiple figures, I will add the pose to the library (see rule #1). I can delete these poses later, if I want, but if I don't like the current pose, I can re-apply the old one. I will work on a scene slowly and methodically and not let Poser make me so frustrated that I forget these rules. I will post these rules on my monitor, so I will read them every time I use Poser.