 So you just want to know how to stitch, not a problem. The stitch action lets you left click one point to another. By default it sets to end which means when you left click two points together it'll merge both to the second point. Every time you press a space bar you will reset and be able to start new ones. If you change modifiers to mid then both points will meet at the middle. And if you set it to start then both points will meet at the first point. Hope that helps. Man as always hope you have a fantastic day and I'll see you around.