You shouldn't have to use the multi-pads for this though.. The basic sequencer itself should allow you to set a loop point, and the number of measures to be looped... It would be nice if arrangers had sequencers like those of a synth....

Squeak
_________________________
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.