I was told there was no documentation with the software because GMG wanted you to purchase the GMG paper, which already has profiles set up.
I However have not ask them directly, I guess I should
Hello Mur,
please use the tutorial that you can find on gmgcolor.com in the download section with the 'Starter Kits'.
The 'Starter Kits' are containing all tools and a description on how to create your 'personal' mx3 calibration. :-)