Adding .GSC Files To .FF Files.

Hello everybody, FuttBuck here! I have yet another question, about modding. I was just wondering if someone could tell me how you add GSC files to your FF Mod Menu file. It started when I was editing Simon's edit of Rewind Menu on Black Ops Wii, I found some game type Scripting and I need to make a Fresh new GSC File so I can put the Scripting in it, but here's the thing. I have no clue on how to add your own GSC File??? So if someone know's how to do it, can you please tell me. Thanks, FuttBuck

(BTW Don't say Google search it or Youtube it or shit like that... I have...... Like MILLIONS OF TIMES!!!)

Thanks

Can't you just create a new .gsc and include it in another?
I've also seen people create their own and name it somehow. xD

Ya that's what I want to do is create my own and add it to the .FF edited Mod Menu but I don't know how to.

Jesse google it xD