[Suggestion] Custom defaults for FM instruments

[ExecThTs]

Currently when I create a new instrument I get something with the detune/multiplier/levels of each operator all over the place. I get that this "default sound" if more close to what one would make for a Mega Drive game, but it kind of interferes with the creative workflow.

Personally I'd like to have a default that looks like this:

I know that right now it can be worked around by having this saved to a file but it would be nice to have a button labeled "Make default" in the corner somewhere.