If you navigate to the locations shown in your scenery library (D:\lib_ORBX-P3D\p3dv5\), you will find the folders and their files, this is a folder you have created, and they will show up on the P3D addons list (not the folder).
I was looking at is more closely and in my orbx central, the insertion point is now placed correctly. just above the Randolph_AFB. It said that it is set correctly in green. Then started my P3D and my aircraft is still floating. It is very frustrating!!
ORBX P3Dv5