Drum More than 2 notes at a time

Hi all,

I'm trying to notate drums but I can't put more than a kick and a tom/cymbal/snare. This has be a bug because in drums you have 2 hands and 2 feet. How do I add more than 2 notes at a time in drums?

I've tried multiple voicings but the program won't let me add them. (This should not have to be resolved by making an additional drum track, which is my current solution.)

Thanks in advance.