I was following along a video that showed how to take an frame the borders of a mesh and delete part of the curve (with the topology brush) to get it just a lone along one of the borders. The video was done in 4r4 and I’m with version 4r5 (not sure if that makes any difference). I can’t delete part of the frame border line. I can easily make lines on the mesh for new topology, but I’m after the border curve. When I tap alt and drag off the mesh to delete part of the line it just doesn’t work. Not sure how to do it in the right way. Any advise would be greatly appreciated. Thanks