Yup! Use your fingers, and I also use a footswitch to control the bass drum. Using a footswitch for the bass drum frees up both of my hands for playing.. As on a real kit you'd play the bass with your foot. Doing this with my drum machine actaully makes it feel more natural when I play and record patterns.

Squeak
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GEAR: Yamaha MOXF-6, Casio MZX-500, Roland Juno-Di, M-Audio Venom, Roland RS-70, Yamaha PSR S700, M-Audio Axiom Pro-61 (Midi Controller). SOFTWARE: Mixcraft-7, PowerTracks Pro Audio 2013, Beat Thang Virtual, Dimension Le.