FSAirlines

How can two or more pilots of the same virtual airline ,fly the same flight and book it at the same time?Why is it impissible to fly the same flight with other pilots of the same airline the same flight?

The only way to do that is to insert a duplicate flightplan.

Additional to this, if they intend to use Shared Cockpit of any sort, they cannot both get credit for the flight. This would be cheating as you'd be flying the flight once but get paid for having flown it twice.

We have plans to support the Shared Cockpit option of FSX in the Client, but until that features has come we can't allow it for reasons Chris stated.