i'm making a DVD menu, and we're pretty happy with it. the one thing we want to change is the chapter selection buttons should animate in - essentially, slide in from offscreen on the right and land in the right place, ready to be clicked. is this possible?
It's very possible, but you have to have help from a program like After Effects or Premiere Pro.
If you have AE, you can send a static version of your menu to AE as a comp, then animate it as desired. If you have the full Production Studio or Master Collection, then you can import that AE comp right back into Encore via Dynamic Link.
When you get the animated menu video clip back into Encore, add it to a menu as a video background, and link the new motion menu to the original static menu.