So, since nanomad seemed to have a little bit more time on his hands and wanted suggestions, I thought of a thing, which might or might not have been said before.
Picture this if you will: I would really appreciate a ML function that allows the user to save a certain exposure preset (kinda like Expo. Presets, but not quite). At the user's choice, the exposure presets can be dumped into files (expo config files, whatever you want to call them) and/or sent directly to manual mode (M)'s exposure settings. (somebody likes to use formatting a lot)
I don't know how useful other people might find it, but I've had times when I wish I'd jotted down the exposure for certain places (say, a poorly-lit room, where you don't have access to a tripod, but have managed over a year to find a good exposure preset for it). True, you can note down the exposure settings, but what's the fun in doing that?
tl;dr, I wish I could have a "send exposure preset to manual/file(s)" function. I know, lack of buttons. Say... half-pressed shutter + the Q button, or the DEL (although you use DEL in conjunction with the wheel to compensate EV, but I doubt a quick tap will affect it).
I certainly had other ideas, way before I'd found out about ML, but obviously, they come and go. I'll be sure to come back if they do.
Peace.