Not on the 320 anymore , but as far as I can remember you hit 1L key go to hold enter reduce the time to 0 mins that should give you a nice circle either L or R to hold at ppos . . . . ooh ya and if your in Hdg you press to manage and voila . . . . . .
hope that helps but I guess you already know that by now
miss flying the little bugger ....
Goliath Bus