I may have just not seen this in the forums or in the manual. I am looking to increase or decrease a variable based on scrolling the mouse wheel.

example:
if(mouse_wheel moves up) CamDist += 5*time_step;

if(mouse_wheel moves down) CamDist -= 5*time_step;

http://www.conitec.net/beta/amickey.htm
It is 'mickey.z'.

'CamDist += mickey.z * time_step * 10;'

is sufficiant for both, increasing and decreasing.

thank you