Produce an audio stream by defining a pattern. The matrix itselves doesn't have any audio signals on its own input you may rather link it to a synth engine. The matrix is a rectangular area you may navigate within by arrow keys or toggle pattern by hiting space. The matrix is a true mono device but you may emulate multiple channels by doing multi-output. This is fulfilled by adjusting output pads within machine's properties dialog.

Run button comes first and is followed by a one dimensional vector bank index labeled from 1 to 9. Then follows the matrix you have to leave it by hiting tab then you might modify sequence length or do loop control of the sequence.