This cursor also reveals the
special functionality of the Dogleg tool. A Dogleg has 5 nodes, the largest
of which (located in the middle of the vertical section) can be moved
horizontally while the corner nodes are simultaneously adjusted to maintain
all the dogleg's angles at 90°. By moving the corner nodes with the Edit
Node cursor you can introduce angles into the dogleg which will again
be maintained as you slide the central (usually vertical) section