[amester1981]

I don’t understand the multiple libraries, but I just use different collections for different parts. I have at least 5000 parts for about a dozen instruments across a dozen or so bands. Each collection consists of the band name and part name. Each file is in the appropriate collection. Then I simply filter by collection when building set lists or playing tunes at rehearsals.

Thanks Dave, 
And are you able to use the Follower / Leader function using this approach ? I assume not as each file I think has the part name in it that is different. I'm REALLY trying to make this work to have parts that are different but having the same file name so that follower / leader works. 

I'm really hoping Mike can help with this as I am so close, but yet so far :-)