Two possibly impossible ideas about BRSTMs

[YoungCatface]

I've been looking into replacing BRSTMs and there are a few things I'd like to do, but I'd like to know if they're possible.

1: Is it possible to take a BRSTM file and reroute it to a different stage of my choosing? Say, for instance, I wanted to take "Forest / Nature Area" (on Halberd by default) and move it over to Green Greens. Is it possible to do that without changing the BRSTMs themselves?

2: Is it possible to put a song in place of one of the many unused BRSTM files in Brawl and load that into the actual game? I vaguely remember seeing a YouTube video a few years ago of someone trying to take U05.brstm ("You Can Do Anything" from the Japanese version of Sonic CD) and load it to Green Hill Zone. The game crashed after the battle began, but this video (if I didn't dream it) would prove that loading them is possible. If I simply move a working, functional BRSTM into its place, would it be possible to load that without altering any ingame BRSTMs?

Thanks in advance!

 

[Tybis]

I think I recall an attempt at doing these types of things... In THIS THREAD.
Doesn't look like anything ever became of the BrawlDJ tool though. I guess your best option is just to stick to replacing .brstms instead simply "adding more".