Suggestion: implement an altimeter as part of the minimap/compass

With the implementation of flying, it is useful to be able to specify a destination in 3D space; there are several areas in Heavenward located directly above/below one another.

The implementation of an altimeter that displays your altitude as a number (height in yalms from the lower bound of the zone) would help to specify locations. This would also have the additional minor benefit of being able to tell when you are flying straight.

Can this feature be implemented?

With the introduction of Diadem, this feature is even more sorely needed (and should be integrated with the <pos> command).

It's very cumbersome to try to tell your party members where you are in Diadem when there are some islands near the "top" of the playfield, while other islands are near the "bottom"; the worst case is when there are islands floating above other islands. Implementing an altimeter and integrating it with the <pos> command would help alleviate this problem, as well as making it easier to locate /shouted destinations for star-ranked pops.