Inscribing a map square?

[fruviad]

I'm assuming this isn't possible, but maybe it's one of those things that's in the game which I've never stumbled across?

Is there a way to annotate a remote square on a map?

For example: I cast "Reveal Monsters" and detect a creature that I wish to approach cautiously or avoid entirely, but which isn't detected by telepathy.

It would be really handy to be able to add a note to that square on the map in the same way that I can add an inscription to an item.

The resulting inscription on the square would be visible on the map and a reminder to me after I've wandered to the far side of the level, paused my game overnight, and then sat down at the keyboard again.

The closest analog that I can think of is Rune of Protection, which affects a square non-destructively, albeit not remotely.