Well actually i wanted to try fixing Uke because its kinda cool like other people who have done fixing uke and was actually pretty awsome :3

if your talking about Concons youtube videos its just a matter of making a Singleplayer replay then rewinding the replay using . and , you can speed up and slow down the replays and if you make the replay look good enough when you go in reverse it will look like your putting hum back together

Oh Thanks!
-----
How do u rewind then?

you use these buttons < > when you want to rewilnd press < untill it goes negitive... and if ur on steam you cant

i think it uses both but i prefer . and ,

I use Steam is there other buttons?

when you open up your replay if you do Quick Load then you have to let the replay run all the way through before slowing or speedibg it up. I use steam too and no it has the same controls

Thanks!