JJ OS and the MPC tutorial

OK, I have the JJ OS loaded, may have been a mistake to do this while learning. Im at the trim portion of the MPC 1000 tutorial, but I cant find trim, it just says loop, zoom in, edit, chop, and displays the wave. I know this isnt exactly a pro level questions, but it DOES pertain to the JJ OS, so please help.

NVM, I guess you can just manually zoom in and discard the excess.