Yep, exactly, user waypoints.
I dont have the chart around currently, but it would be in this general format: Place/Bearing/Distance so like
CH/180/05
for a waypoint 5nm in a 180° direction from CH.
As for the arrival.. That is also probably due to the navdata mod I'm afraid. We currently only support the insim navdata and everything other than that is "use at your own risk"