The rh, top plate button on the M-D tells you how many exposures you have left and the current battery state.
You cannot format the card in the M-D camera at all, or delete photos.
You can use the thumb wheel to set the EV compensation when shooting. And also to set the date and time (the only configuration settings on the M-D).
If you have the ISO knob AND an EV compensation knob AND a button like I see on this fake M10-D image, those could be used to set date and time. There's really little need for yet another control just to set the date and time.
I love the M-D typ 262, it's my favorite of all the M cameras—film or digital—I've had for the past 50 years. I wouldn't want an M10-D with any more features than the M-D has, at all. The only things I'd like to see in the M10-D aside from what the M-D has would be the improved view finder and sensor. Everything else is unnecessary and frivolous, not in keeping with what the M-D is supposed to be.
G