LOL, reading this thread in 2018 and there is still no Next\Previous button.
In my case I want to replace one crash cymbal with another in Groove Agent SE 4 and I have no Idea how to do that.
In my preset I have “FC04_PK_7_Crash2_v1_AM” and I have no idea where is it located so I am just scanning whole my system for that file. So I would be able to check that location for other cymbals from other GA4SE presets.
Now I am sure that it was not a mistake to use Battery over GA4, in my daily productions, ha-ha! I guess this one software was designed to sell you stuff without a lot of opportunities do something with it. tune or edit.
Hide your property better Steinberg, or people will steal it! They care so much what you have there, lol )))