Theme: Signal polygons, ground planes (V19+)
How cann I add a corner/vertex to a polygon afterwards?
If you click the area of the polygon with M1 all corners show black little boxes (=touchpad, vertex). If you click M2 on one of it a context menu appears. It gives opportunity to delete the vertex or to add one before or behind the one in question. A polygon chain always is recognized counter clockwise. No matter how the polygon initially had been drawn.
Clicking M1H upon a vertex allows moving it by drag and drop.
