Just a small Idea I had...the addition of an altimeter and/or an artificial horizon to the nav window would be a great help to flying/jumping characters with returning to level flight at the proper height after maneuvering...sent this out in-game and got an e-mail response to post it to the forum so...here it is.
One additional note, this should be a fairly straightforward addition/change with the coordinate system...much like the range to waypoint/contact countdown which is already on the nav panel.