In this menu both the N & P as well as VT2xx Prev and Next keys work.

PREVIOUS_TIME  - This will decrement the time to the previous half hour
		 and return you to selecting a room number.

NEXT_TIME      - This will increment the time to the next half hour
		 and return you to selecting a room number.

MENU	       - Return to the main menu.

QUIT	       - All done.
