Automated Soundfonts Appliance
(Appliance... does that word exist?) ANYWAY...
This is clearly not up to sf2/sf3 types of files. But what if Musescore could support some kind of file which filescould be applied to the instrument(s) it is meant to be applied to?
Could save people from the trouble of finding the soundfonts they are looking for... (If this idea is never gonna happen, probably will not, I have an idea for making soundfont finding and applying much quicker with a new Instrument Sound Selecting Design (Similar to instrument selection's window).