Yes. Add a shot with same station (A->A), no data, and set LRUD in this 'fake shot' for this station.
If session has LRUD taken at start station do this for the first station, for LRUD taken at end station do this for last station (aka do this for the station with missing LRUD).
This work only if the station has only one connection (if more the one the angle of LR will not be calculate on the first shot starting/ending from the station).
