Regarding my post above, please find attached some images from what i see.
It seems to me that GSX is not activated in P3Dv4, see sim screenshot(sorry to big to upload),
but in the addon tab of the sim only addon manager appears en no gsx etc ...
The same image appears when running the FSDT live updater!!
Anyone for help please? I have been digging in this forum for hours but no result.