[itsme]

@dallaskruse: I read in your post
"I use 8 tablets at a time for my band situation. When I add a new song, I have to go into each tablet and add tempo and key information of the songs individually on each tablet."
If the main question is how to add identical metadata to all the tablets: Why not writing the metadata into a CSV file and using CSV import instead of "Import Local File"? If you describe your workflow in detail and post an example I might be able to propose how to improve it.
The original intention of CSV import is importing several songs at once from a multi-song PDF like a fakebook. But it also works fine when the PDF contains only one song.