Under edit menu I find Manage custom waypoints symbols but when selected, I see None Found. I think you have to put your symbol in a special folder but I can find the path. Also will jpeg work?
Thanks
If you have created Garmin Custom Maps using GE and image overlays which result in a KMZ file, then you can Import the KMZ map (image only) into BaseCamp which will show in your LIST. Then you can select the Custom Map(s) and Transfer it/them to your Oregon using the BC Transfer to Device and then selecting Garmin Custom Maps and Imagery.
That should work(?).
Cheers,