First log in in Fectar Studio.
There are two ways to go to the documentation.
1. Starting Page Button
On the left side in the main navigation bar on the starting page, you see the button to the documentation.
2. Click on 'Help' in the Code Editor Screen
At the bottom left of the Code Editor Screen, click on the 'Help'-button to open a new window for the documentation of the Fectar Spatial Engine.