Midi mapping Superior Drummer 3, only GM-Drums available

I'm ruing Supperior Drummer 3 in SO3 Pro.

In the Editor I want to add some own notes to a track and don't have any clue about adding the Instrumentlist mapped to the Drum editor. There is a list for GM availiable to choose, but it differs from the Instruments from SD.

How do I get the right sounds in the editor?