ok proof of concept here
me and the pure one where free running having a fun time when oops he messed up.
i knew i could have made it if it wasn't for his dqing which ended the match(replay below)

i realized at that point in the replay we were not touching what so ever
so i thought why can't i edit him so he doesn't dq
then go into notepad and edit my old moves back in
that way i can edit his(thepureone) moves without editing mine
i then kept editing him long passed where I stopped moving
then i separately edited myself over the jump
then i combined them back together

it was a huge success! check out the before and after below