Dan,
it works in a totally different way than you are used to with Mach, it is more like other Industrial controls.
You just have x1 x10 x100 modes, for metric you choose x10 x100 x1000 in the plugin but I will just refer to as x1 x10 x100 to avoid confusion.
When it is at x1 then each click of the MPG is 0.01mm, x10 its 0.1mm an x100 it is 1mm.
With Mach or Smoothstepper etc you have Velocity, multistep or step, with the CSMIO you dont have any mode.
When in Velocity mode with for example the SS the click of the MPG is not an accurate move but with the CSMIO it is, so it is very easy to move to exact positions and unlike Multistep mode it is very fluid in movement.
Hood