Hello everyone, I'm new to the forum. I have the same problem. Basically I have an export from a 3D program that has lines of hidden parts subjected to visible edges. I would like to be able to delete only the lines of the layer of the hidden parts that in theory I shouldn't see. With the overkill command while moving the visible lines in the foreground and moving the hidden ones in the background, the cancellation is random. The result is that some lines that should be continuous because of visible edges are instead dashed as well as being moved to the wrong layer.