This function enables you to label the arcs and the nodes in a network that
you've just created using the node and arc creation functions described
above. Just position the mouse cursor over the label you want to edit
and press the right mouse button down. A vertical bar will appear
indicating where the cursor is located. At this point you you may use
simple EMACS commands (see page 
) to enter/edit your text. You
may also reposition the cursor in the label by pointing to the point in
the label where you'd like it and pressing left down.
After you're satisfied with the label, just hit RETURN and editing will be disabled.
This function may also be invoked by simultaneously pressing right down and Control over the label.