1. Depending on the TADs level of zoom you may or may not see the map. You can change TAD zoom with DMS up or down (TAD as SOI). Also, OSB 18ish toggles between the three map modes (off, man, auto)
2. The HUD will always show your RALT. Lower right side, indicated as RXXX untill you're low enough to get a reading.
You can set this to display as a tape by setting IFFCC to test, and navigating to the display modes page