More coalition presets

Right now the Mission Editor has three presets for coalition settings in a new mission: modern, ww2 and custom.

It would be very convenient if one could save (and perhaps even name) multiple custom settings.

I mimic that functionality by editing an empty mission with the coalitions set as I want, then I save it with a special name and then use it as a starting point for new missions with the same coalition settings, just have to take care to "save as" in order to not alter my tenplate mission.

That is kind of my problem, really. I build a little mission here, change up the coalitions to build something else, then when I want to go back I might forget that my 'Custom' preset has changed since. No big deal, really, it's just annoying when I start building a mission and an hour later notice that one of the countries I wanted to be in it just isn't there.