[HELP] Porting Characters via .rel

[Jitters]

Trying to figure this one out, but I'm struggling wtih it.
Let me use an example; say I want to use this mod to replace Diddy Kong.
How can I create a .rel so I can easily port him to work over Diddy, sfx and all (in a slightly painless manner)?

 

[davidvkimball]

I'd like to know as well.