Thank you, English is not our native language, and of course, we may do something wrong.
Could you please specify what information is missing, or what you would like to know about our software according to that documentation http://doc.pumotix.ru/display/PUMENG/User+manual
Yes, we charge money for the software features, but at the same time we offer basic options of Pumotix free. They are perfectly suitable for milling hobby machines.
We suppose that to understand a product, it is necessary to test it. If you have a controller, you can do it free.
Also you can always reckon on our technical support.