FMS Custom Waypoints
I've been told by my Avionics department a data card reader/writer is available for the B777 the Primus Epic was designed for but there's nothing like it for the FMS installed in the 139. There is a way to clone from one MAU box to another, so if you have a spare MAU you could use it as a very expensive datacard to load and back up your Custom Database. Otherwise it's a manual process one entry at at time. Agusta - you listening?