Home Green button: play door animation frames 0-60 Red button: play door animation frames 60->0 Download Source CMO File: SetAnimationStepEntity.zip Here's a quick example of how to run an animation backwards. The garage door above happens to be a linear animation, but this technique works for any type of animation (for example an animation along a curved path). Using the Set Animation Step Entity BB, you can set an animation to a specific frame (percentage of total anim actually). Using a Counter BB to iterate from 0-100%, opens your door. Using a Counter BB, with a step of -1, and interating from 100-0% of the animation, closes your door.