Drum editor: Hidden octave

The drum editor starts at C1. However, with my full size MIDI keyboard, I get more drum sounds from the octave below. (C0 - B0)

How can I make Cubase display the drum sounds from the 0-octave, so I can include them in my composition?

Scroll down to the unmapped list.
You’ll be able to go as low as the -2 octave

Ah, there they are, thanks.

Still, I don’t approve of the notes being in slightly random order.