 So you just don't know how to work from behind. Not a problem. This one took me a while to figure out, but basically when target is set to behind, it will only apply the action to things that are behind the face that you have selected. So if we click here, it will affect everything because everything is behind this face. But if we click over here, you will notice that it only affects the faces behind the face that I clicked. So the faces that were in front of it aren't gonna get affected. And it depends on the orientation of the face you clicked, not the camera. So if we click here, it'll affect these, but if we click there, it'll affect those. So if you wanna tell ZBrush, hey, only mask the points behind this face, just do it like this, then bam, you're done. Hope that helps, and as always, hope you have a fantastic day. Now, see you around.