Work Sharp Ken Onion Freehand Sharpening

How I use the Work Sharp Ken Onion edition with no guides, freehand. If you're not familiar with the belts on this tool, I'm referring to them by name. Here's what they mean: P120: Coarse roughly 100 grit ANSI X65: 65 Micron abrasive size, ~200 grit X22: 22 Micron, ~425 grit X4: 4 Micron, ~1400 grit