For Orbx's bgl files I opened up the ini file for the airport profile and changed the AFCAD path to - \\?\C:\Users\"Your name here"\AppData\Roaming\Virtuali\GSX\MSFS\EGLC London City Airport.bgl and dropped the bgl file it into the gsx profile folder.
For the LVFR's bgl file I renamed them, for example, from objects.bgl to LEBL Barcelona El Prat Airport, changed the AFCAD patch to \\?\C:\Users\"Your name here"\AppData\Roaming\Virtuali\GSX\MSFS\LEBL Barcelona El Prat Airport.bgl in the ini and dropped the bgl file into the gsx profile folder