This patch uses four sequencers who signals have been mixed together and sent through a Scale Quantizer module. The Crossfade modules switch between the divided and undivided clock signal. You can also fade between them and get a semi-random movement. A feedback control (marked by the text via), allows you to use the sum of the four sequencers to control the pulse width of the divided clock signal. Because it works in a feedback loop, it can provide pretty interesting rhythms at different positions and with each sequencer set to different step lengths.
For more information about each module, see their corresponding metadata.