Controlling carousel animation

http://www.joshkneedler.net/fuse/basicMove7.html

i’m working with some carousel movement and am trying to figure out how to add a level of interactivity beyond simply reacting to the _xmouse position.

when pressing prev or next i want to go into a mode where the objects cycle through positions on the ellipse.

i was thinking the fuse kit would be a good solution which is what i tried here:
http://www.joshkneedler.net/fuse/basicMove7.zip

but i don’t think i’m on the right track. any tips or suggestions would be appreciated,
thanks,
josh k