Launch X‑Plane 11. Go to the main menu, then . Check that SCENERY_PACK Custom Scenery/GT_Library/ appears somewhere in the list. The physical order in the scenery_packs.ini file is generally not critical for libraries as long as they are below airport sceneries but above global airports. A stable rule: keep all libraries grouped together near the bottom of the list, just above Global Airports and orthophoto overlays.
Copy the entire gt_library folder into your X-Plane 11/Custom Scenery directory. gt library xp11
: It moves beyond "standard green" to include eye-catching textures based on real-world photography, providing a "labour of love" level of detail to freeware and payware projects alike. Integration in the XP11 Ecosystem gt_library Launch X‑Plane 11