Need some help withMSPhysics script

[Johnsketch]

Hi, i'm just started with using script in ms physics. I see the potential, but its hard to find samples or good tutorials about it. For example, i use this script for different servo's

onStart{
set_var("schuif",0)
}

onClick{
if get_var("schuif")==0
set_var("schuif",9)
else
set_var("schuif",0)
end
}

This script make's a piston go 0ne direction on click, and go back on the next click.
Is it possible te slider goes back to 0 without the second click? Meaning it goes to 9 en then returns to 0 ?

I use a similar script to rotate an object 45 degrees on each clikck, but this script allows me only 3 clicks. Is there a way to extend the number of clicks?

Hope someone can help me out with this