Don't have Poser in front of me right now so hopefully somebody will give you a better answer but... 1. lengthen the animation the desired amount by adding frames to the end. 2. I think it's called RE-TIME animation which lets you move frames around thereby creating the holes for new frames where you need them. For example, if you have a 60 frame animation and want 10 new frames between frame 30 and 31, first lengthen the animation to 70 frames, then reasign frames 31 through 60 to frames 41 through 70. 1-30 are the same as before, 31-40 become your new frames, and 41-70 are still your old 31-60.