I think it would be nice to be able to pin certain masteries to the top of the total mastery list/tab, because often the masteries I want to actively track in the moment differ from the masteries I want to keep tabs on but only check once in a while.
I often use the mastery tracking tool in the bottom left corner as a way to quick craft or quick donate easily ac-blam!-ulated items when fishing or exploring certain areas so I don’t have to keep tabbing out and back into the workshop or friendship donation, and it’s a bit annoying when I want to do this to sub out the masteries I want to track overall with the items I need to track only for a few minutes (because there’s only 8 slots), and then hope I remember what I was tracking before and switch it back once I’m done fishing or exploring.
I understand why it’s only 8 slots from a UI perspective, but I think having a system where one can pin masteries to the top of the masteries menu AND separately track certain items at all times actively in the bottom left would be a great QOL improvement. The way it is works pretty well for what it is trying to accomplish, but adding pinning or something similar would be the cherry on top :)