Using FPSPlayer, Pushbuttons, and ChangeEmission

[3Dski7059]

I'm playing with the packaged scripts to learn how they work in Ultra Engine Pro. I set FPSPlayer to a pivot. I have two boxes that have Pushbutton applied to them. I assigned ChangeEmission to a cylinder and set different colors to Color 1 and Color 2. In the Flowgraph Editor I connected one Pushbutton to SetColor 1, and the other Pushbutton to SetColor 2. I thought I could use E to activate the Pushbuttons to change the cylinder's color, but this doesn't work. What am I missing