thx for your quick reply.
does this mean when I´m on ga, i.e. n the Cessna, I have to enter the flight plan into the navi by hand? or can I just use the autopilot in pilot2atc set to "nav"?
i´m guessing it´s more realistic that way but the internal atc and the one from x-life gave me corrections to the course along the route and I expected the same in pilot2atc.