Animation: How to Copy, Reverse and Paste

I have an animation that took a number of tries to get right (not sure why, I'm just learning it). I'd now like to 'close' the things that I 'opened' to create a complete cycle. Is it possible to copy the current animation, reverse it and paste into the timeline, rather then trying to move all the parts again and possibly muck up my current animation? (I'll focus on getting everything working properly later, right now I just need the completed animation).

SolidworksSimulation