Ok say u make a really cool replay and just when u are about to finish it with a really cool ending, ur frames reach 0. I hate it when that happens , how I add more frames with out restarting?

I have the same problem all the time, and sometimes I even have extra frames. Unfortunately, I don't know how to do it either. I hope someone answers.

go to notepad, open the replay file on it, somewhere around the top, it will show how many frames you have, delete the number and add in the amount of frames you desire

NOTICE: If you have windows, it will be under Accessories. I'm not sure for Macs.
EXAMPLE

NEWGAME 0;500 10 15 0 0 2 100 0 0 classic 0 0 100 0 0 0 1 0 2 0 0 0 0 0 0 0.000000 0.000000 -9.820000 0 0


The bolded number is the amount of frames there are...

You can delete it and add how many frames you want