To install PiXYZ PLUGIN for Unity (once you purchased your license), please follow this procedure:

1)Go to the DOWNLOAD page of the website.
2)There you will find a Unity package, download it.
3)Go to the computer on which you wish to install PiXYZ PLUGIN for Unity, and run Unity with administrator rights.
4)Go to the Asset menu, choose Import package / Custom package… and select the package you downloaded.
5)Once the installation is over, there will be a new PiXYZ menu available.
6)Activate your license (see Question 4.1).
7)To start using PiXYZ, go to menu PiXYZ / Import CAD and select settings to import CAD models in Unity.