+1 also for lazy load option in prefs! and also, like technobear mentions, it could ideally unload any unused ones when the next patch is loaded then run.
this would also maybe pair well with the ‘per patch buffer/rate’ settings request:
so anyone could just easily drop in any yml(from the gallery here, patchstorage, or wherever) and quickly load them up and the patch just works… without all the extra steps of possibly having to reconfig the system from patch to patch.