First of all I'd like to thank all contributors for their work.
The FSX native aircraft have two separate models: interior and exterior. Many of them work in P3D V4
The aircraft ported from FS9 have only one model and the conversion is related to textures and/or gauges. They are not working in P3D 64bit.
My request/suggestion is to add the words "FSX NATIVE" or "PORTOVER" (or FSX NON NATIVE) to clarify the the kind of aircraft that appear as "FSX". This will help to P3D V4 users.
For instance, at present time there are two nice packs of textures and improvements of an aircraft in particular, Pack 1 is made for a portover from an author but Pack2 is for a FSX native of the same aircraft from another author. Of course both are good for FSX, but the portover can not be used in P3D V4.
Many thanks.