Custom Lighting Controls files

First off this may already exist?  I am presently working on a Halloween lighting project where we develop custom DMX light controls.   I am wondering how hard it would be to store the Labels, Notes .... to a file similar to what exists with the Open Fixture library import.   I recently dug myself into a hole by making a 64 channel device where there was needed number of at least 3 copies within the universe.  Unless I am not understanding the mapping I can not simply map to another location and keep the channel's info to the new location (Im kinda a Nooby on this).   I found it really easy to map devices using the Open Fixture library with the exception of  "oops I put it in the wrong channel location - getting rid of range of channels was not easy for me "one by one" via the channel editor).  This is a fantastic App with a fabulous group... We are looking forward to using it more...