Hey DEAD FiSH.
General MIDI channel 10 is for percussion instruments. I'm not aware of any way in General MIDI to have drums on any other channel.
Are you trying to use reverb on the whole channel? Or are you trying to have different drums with different volume levels on the same channel?
If you want to have different drums with different volumes, you can use different note velocities (recommended for representing quiet and loud notes on the same channel).
Individual notes can have a velocity from 1 to 127, with 1 being super quiet and 127 being loudest.
Another option, if your audio card/synth program supports it, is to using different ports. Each device port has 16 channels, so you can have some drums on port 1, channel 10, and a different set of drums on port 2, channel 10 and so forth.
One of my audio cards worked this way, but each sound card and music program works differently.
Unfortunately, with all drums on a single channel, you cannot adjust things like reverb and pan without affecting the whole channel at once.
Your best bet is to record each drum instrument individually as audio tracks, then mix the audio tracks together with the necessary reverb in a sound mixing program. Or use a different port, as mentioned above.