Does anyone have any clues where I can find a virtual cabin addon pack for beoing 737's 300, 400, 700 & 800 and also where I can locate some addons with cabin's already there?
I had a look around and couldn't find that much. I found http://library.avsim.net/sendfile.php?Location=AVSIM&Proto=ftp&DLID=58588 which is a nice 737-700. It says it has a very nice virtual cockpit thats been added, but I can't find a specific addon that means all your 737 virtual cockpits will be good. Alternatively you could try downloading F1 View which is quite a nice program https://forum.flyawaysimulation.com/forum/topic/9218/active-camera/
Let us know how you get on 😉