Put 2 cymbal sounds on tom pad in EZdrummer?

Hello everyone.

I only play two of the four tom toms on my electronic drum set. I've programmed cymbals for the remaining two tom pads.

Now I've bought EZdrummer 2 and would like to do the same thing there.

But if I click on the individual toms or open the dropdown menu, I can only select different tom sounds and not assign them to something completely different.

Is there a way to do this and am I just too stupid, or is it just not possible?

Thanks in advance.