We were discussing this on cnczone but I figured I'd move it over here since I'd rather have everything in one place over here.
So I've recreated a sidebar button on the main page to select a jog step of 0.01. Here are its properties:
http://imgur.com/a/3UZLh
I was told to add this to the screen script:
AS3.Switchbutton(bool State, int Buttonnumber);
Which I interpreted as
AS3.Switchbutton(bool true, int 164);
I put that in the .ssf file like so:
http://imgur.com/a/NwxOq
Now I just get a "Screen build error:defaultscreenset" error when I start the program. So I must have misunderstood something.