Combining revisions

Hi, I'm not any good at emulators or anything like that. I just wondered if there's any way to combine revisions so that I can have my issues on Fire Emblem: Path of Radiance fixed. I have choppy sound and a foggy map, I've found revisions for both of them, but I don't seem to find a way to combine them without one ruining for the other.

Thanks in advance.