Unnecessary fuses

What is your question?

I have a fuse map to my car but not all fuses were originally installed. I think I made a mistake moving a fuse but don't know the original configuration. My thought is to put the correct fuses in all slots per the map to get it right but of course not all fuse slots were originally filled. Is there an adverse reaction if I install a fuse per the map where one was not originally required.?