There appears to be no way to return the position of the cursor in tactical view (dunno if there are others like this occasion).
For example getMousePosition doesn't work, only thing that provides some data are the onMouseHolding/onMouseMoving events but they produce some garbage data no-one even seems to know what it is; wiki says "some kind of x and y delta position". So unless someone knows delta of what those are useless values (and even if known for us with no-math-brain those might not help either 🤔 ).
So, maybe a new command? Just thinking it could return what is returned for the command it's used for (like "move here") so it would be the world position? 🤔
Or update getMousePosition?
And/or "fix" the output in onMouseHolding/Moving to produce usable data?