I can't see any information about the software that will control the machine.Its quite normal to have a box in the configuration stage of the machine that will allow you to tell the controller how many steps per millimetre there are.So you need to determine how many (if any) microsteps per revolution there will be and then add the information about the reduction ratio and the thread pitch.I don't really understand why you would want to select 10mm but if that is the necessary amount,wouldn't a 10:32 reduction be appropriate?Or any other multiple of 5:16.I can remember a machine that had 57.33 steps per millimetre and it worked OK.