Question about the drum editor

How can I hide all the unused lanes when looking at the drum editor?
I have a drum map for SD3 using many lanes, but I only want to see the 7 that have info on them.

Check documentation for your version, but see:

Hope I have done this right…click the arrow and select “Show drum sounds with events”

Looks right. It’s a very good feature of editor. I tend to use the MIDI editor for everything, but some users like the drum editor. It’s good we have both.