Copying Scenes from one Video to another and a Walking Example

So I've done a walking scene that basically is for the ending of all my videos. Despite the fact I knew how to get them to walk this still took a good 5-8 hours. (I don't count, as it is depressing) My question is can I copy this entire scene somehow into my videos, or do I have to cut and paste each character?

I've also attached a pic for those of you interested in how this was done. Basically, everything's a puppet, including names. Many of the changes and expressions are done with triggers.

Again, I didn't draw these characters. I purchased them from Graphic Mama. -Sharon