So i undestrand that passengers dont use the modeled “stair door “ of crj i mean the door of the plane.
They surely do because, as I've said in my previous reply, we HAVE added an embedded stair configuration for these airplanes.
Provided, of course, you ARE using that one. Which can be easily checked if you open the airplane editor, and check what window says on the first line about the source of configuration GSX is taking its data from.
If it doesn't read "internal GSX database", then you'll know it's reading from another custom configuration you made, which might now be obsolete, since we just updated it to support these new features, so you MUST RESET it.