For sure, let's automate where possible. Although it doesn't seem like a lot, there must take longer to do a slow rebuild rather than a fast one. A slow one includes user styles and a fast one doesn't. Logically it would seem the just the user styles should take just a few seconds. Typically we don't get PGMusic style Realtracks or Realdrum changes very often, (so why do we need the rebuild?) but user styles might change more frequently.

It's not a show stopper in any event, just musing for a Canuck waiting for his song picker to work

BIAB for Windows Version 2019 (643)
Windows 10 (1909)