Would it be possible using VO's lua api to have the mouse cursor appear on screen and become active when I'm flying?

The reason I ask is because I'd like to be able to have the mouse pointer become visible and active while I'm holding the space bar down, hopefully then allowing me to select things like buttons that I'd programmed to appear in the HUD area.

Had a look on the vo-wiki and found various mouse related functions but most of them didn't really have any good descriptions for what I'm after.