$#Edit > Move Polyline Vertex
Alters the location of a single vertex within a polyline.
1.Select Edit > Move Polyline Vertex. This turns on the "edit" mode.
2.Move the mouse crosshairs over the polyline and click the left mouse button. The vertex that is nearest to the crosshairs when the polyline is selected becomes the vertex that is moved.
3.Move the vertex to the new location and click the mouse button again. The vertex is placed at the new location.
4.Press the [ESC] key to deselect the command and exit "edit" mode.