Hi Nigel
Welcome to Intercity! I've just realised I never actually replied to your last email, seems to have made its way to the bottom of my inbox and disappeared!
I've never tried the shared cockpit feature but you might find someone on here who can help! Sayng that shes a great bird to fly single crewed and keeps you on your toes, bit more to do than an Airbus!
With regards to the Teamspeak server, we don't have an official one. We did look at a Discord server but haven't got any further with it yet. You are however free to post the details of yours on here for the pilots to use!
Hope to see you in the virtual skies!