It say grip but mean fire button and so on other then that it was great :) (on wands its wrong)

Should the Valve Index controllers work? I see the controller and drop down a cube but I cannot activate anything (level / settings / quit).

but.... is there more buildings in the main game. it would be great if there was more depth but the demo is basically drawing lines and dotting the I's. if this was a rts style game it would be sweet