Hey Puzzlefactory, here's a brief explanation: Yellow area: Acts as a regular FX page, you can turn on and off any effects (e.g. Compressor, Rotator) you want, and move any parameters (e.g. Compressor's Attack, Rotator's Speed) you want using your mouse. Green area: Here's where you assign parameters to be controlled by Big Knob. Say you want Big Knob to control Rotator's Speed. 1. Select the Rotator effect in the effect menu (Yellow section), and turn it on using the led on the left side of the menu. 2. Select the Speed parameter in the parameter menu (Green section) and assign it to Big Knob using the led on the left side of the parameter menu. 3. Now if you move Big Knob from 0% to 100%, Rotator's Speed will move from 0% to 100% too, since that's the default assignment mode (Check From & To Value Edits) - Say that you want Rotator's Speed to go from 75% to 100% instead... or even from 100% to 75% (Inverse), then just enter those values into the From & To value edits. - You can assign to Big Knob as many parameters as you want, and that's the whole purpose of Big Knob, a tool that allows you to do heavy sound transformations by using just one knob - You can save and load presets too!