the short answer , what you see is actually just a autoplay map itself..
the animated bits are either movers or models.
you utilize either key press hooks or the players"yaw" or rotation to navigate the "menus" that you draw onto the prayers HUD via post render.
every part of what i just mentioned is complex to implement. 

if you want the console to draw over the top, you have to modify all the appropriate draw calls and stuff much deeper in ubrowserconsole or umenu code to tell is how to represent that data.

Postal2 for the unreal engine 2 uses a map for its menu.
if you have that game take a look at it, but note that the game engine is very differnt and tailered to making htat work smootly