/mappy lists a couple of console commands but I can't find the command that opens up the options.

I see it's in the game's own addon options but consider to make a standalone panel for it too because the stock options can't be moved from the center of the screen.

The slash command part is done. It should appear on CurseForge after they approve it.

Ah, good catch, thanks.

I will add the redirect slash command to open the in-game options (under /mappy) and leave the help info under /mappy help. Although I remember that one of the recent beta builds broke that functionality even more (it was already broken, requiring 2 calls of the same function to open the options lmao). I need to check if it's also broken on retail.

As for the separate window, this will need some more writing since I've never done this before and I need to research how to create separate frames like that. I'm not sure if I will have the time for that, at least now, but I do see the appeal - it's modifying an existing UI element so moving the window out of view is useful. I will add this to my TODO, but I'm not sure when I will look at it.