Merging 2 model into 1 interior model

Hello guys, i am new to FSX SDK and i i made a 3d cabin model in gmax, i want to merge that into the virtual cockpit of default A321, how can i do that? also i want to copy both wing into interior model, is there any model source of default a321 so i can add my cabin into the mdl file? Thanks you
I very much doubt whether you will be able to get hold of the source files for the FSX default A321, they are probably copyrighted.

Paul Domingue

Resource contributor
thats what i was thinking, but is there any way to add my 3d cabin model to the virtual cockpit by any chance?
You can substitute your interior model of the VC but you would have to make everything as viewed from inside that means everything including animations, textures and coding.