The PMDG 737 should work in shared cockpit mode. You may find that some systems aren't synchronized, such as the FMC, but nearly all of the basic systems are.
I'm looking for a few good fellows to test shared cockpit. I have a LOT of different aircraft from different developers, and it would be great to test them out and see what works and what doesn't.
Also, if any of you would like to do carrier ops, or if you're no good at landing on a carrier but would like to do a ride along, let me know! You'll need the F-14, S-3, or T-45 from http://indiafoxtecho.blogspot.com/. I can send you the updated files to get your ships and carrier ops working in FSX or P3Dv4 as well.
Send me a message or contact me on Steam. ID is JackRiordan. Thanks.