I was considering something like this, but not exactly in this fashion. I was thinking a .txt file for each vehicle/plane/gun in which individual tracer settings could be modified. I don't use tracers in anything, at the moment, but would like to have them for the Ostwind, bombers, the 30mm in the 109s, and a few other oddballs. As it stands now, it's a bit of a pain to go into setup each sortie in which I want to change planes/vehicles.
Perhaps something that we could change a few variables in to adjust conv, tracer combinations, etc would work. I wouldn't think it would involve a massive change to the code, and if we could simply edit the values, we could get endless customized setups without needing 4 pages on the clipboard to do so.
Anyhow, saw this post, reminded me of that.