Only Show Drums that have Notes`s,is greyed out

hi there . in the drum editor the “only show drums that have notes” is greyed out(sorry i cant remember the correct term im not on cubase at the moment) and not working ,it has been in this state for a couple of weeks now , it did work once upon a time and was very useful ,whats happened ?


Do you mean Show Drum Sounds with Events from the Drum Visibility Agent? On my side, this is greyed out, when there are no MIDI Notes in the MIDI part.

thanks martin for your reply ,it is greyed out and not working even when i have lots of midi notes in the editor . i`m not that fick. ta