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