I made this replay, and I was gonna do parkour, but then I just wanted to turn it into a tricking replay, because I had a great opener for tricking. Then, a wall got in my way and I couldn't execute the trick. Can someone change the mod for me and put me on the ground? Thanks.

You can change the position, but in this case you cannot change the mod. Your contacts with the objects mean that if you change them your replay will break.

Sorry.

Is it possible to copy the joint movements into a new replay?

http://enikesha-toribash.appspot.com/ use this to know what moves you made and to remake them