 So you're all about that crease, not a problem. When target is set to edge, it will crease whatever edge you left click. If you pick edge loop complete, it will crease the entire edge loop around the object. Edge loop partial will crease every point on the edge loop as long as the point is connected to four edges. So here you can see that every point here is connected to four edges, which means if we click here, the edge loop will follow the entire loop. But these points right here are only connected to three edges, so that is where the creasing will stop. Polyloop is like edge loop, but instead of creasing the edge loop you click, it will crease the edge loop that is perpendicular to the one you click on. Hope that helps, and as always, I hope you have a fantastic day, and I'll see you around.