Many people use mini hud for different things, and while line specific keybinds are great for, for example, turning on and off the coordinates, sometimes you wish to show completely different information, and that can be better handled through profiles!
my suggesting is 9 profile lists, which contain a list of infos to be shown in the profile. and corresponding key binds to these profiles to turn on the listed ones and disable any enabled not on this list.

This has already been indirectly implemented in the main development code in the past few months, as malilib now has support for config profiles. And via the new action system you can also bind custom hotkeys to switch profiles, or you can only bind it to the switch profiles action and type in the profile name, or use it via the action prompt and then typing in the profile name.

However the info lines stuff will also still be separately rewritten entirely, and there may be some kind of profiles there as well, I'm not yet sure how all of that is going to work. But in any case entirely customizable info lines are planned, and those need to be handled differently from the current hard-coded info line types, so some kind of profiles or groups will likely be necessary to make switching on/off line types less tedious.