Stepper is a basic step sequencer, allowing for 1 to 99 steps. Each step has a Y value of -1 to 1, and an X value, so steps can be at uneven intervals. Stepper is a very useful building block for other shapes, because it can allow direct mouse editing and realtime control of each step's Y value (enable this while you're building a shape by entering the Automation page, adding a Current Step parameter, and enabling Mouse Edit in the State button).