Today I will try it Marks way.
So the CS FMC seas fp STARs as waypoints and when choosing the same STAR in the CDU it becomes a mess.  

In the meantime I made a flightplan from EHAM to DTMB ( Monatsir/Tunesia ).
Wind from the West.

This gives even a greater mess at the Arrival waypoints.

With FSC is is nice to see what an arrival STAR will look like.
Sometimes waypoints near the STAR can be deleted to avoid many turns and make a nice transition into the STAR.

But like I wrote I will try it Mark's way and let you guys now.