 So you don't know what polyloops are, not a problem. Polyloop is just a string of connected polygons. So if we have action set to extrude and target is set to polyloops, when you hover your mouse over a face, you will notice that there will be a little line that points in a direction. If you left click, it will apply your action to whatever polyloop is in that direction. So you can see the line pointing to the side here. So that means it's gonna apply the action horizontally. Likewise, if you see the line pointing up, if we left click now, it's gonna apply the action vertically instead. So that's what polyloops are. Hope that helps. And as always, I hope you have a fantastic day and I'll see you around.