i just want to know if theres a way of change the "stage to replace", because i dont want to replace some stages D:, can someone tell me if theres a way for do this?
No apperently if you textured a skin all areas with the skin get it
Yes you can. You can find all the info here http://ssbbcustom.wikia.com/wiki/Module_files An alternative to that is simply adding new stages with the stage roster expansion code (I still have to try it myself)