Members of this greater community have found a way to actvate the GSL in CFS2.
Before starting backup your original cfs2.gsl file and put it in a safe place.
Global Scenery Layer Editor Keyboard Commands
Activate GSL edit mode = Ctrl + Alt + Shift + G
Save GSL = Ctrl + Alt + S
Save layout file. = Ctrl + E
Load a layout file = Ctrl + L
Notes:
1: By default once you save the GSL it