You need to press space (I broke the code, apologies) and it will wait 4 seconds in between loops or new lines. Apologies for complications, inside I named the lines and put my character so it was easy to see what lines were what and who they belonged to. They're split up between parts and only the backdrops with my lines were kept, all others were deleted.
Also, if it doesn't line up the first time, hit the green flag (it should work) or see inside. Sorry if my voice changed halfway through or something (I got sick)