Orbiter only supports a single star.
There have been attempts to simulate another star system by placing a massive planet very far out with a complex moon system.
This approach however is limited, as orbiter has problems with things very far from the sun. The bigger the values the more inaccuarate they are computed. This holds true for both, speed and distance.
Msss MFD is really the best thing we have in that department. And as far as I am oriented, this will not change with the next version of orbiter.