To zoom in on a particular object, you can select it first and then use the zoom in action described above.
If you click on an edge for which the target node is not shown, CTRL/CMD-clicking will navigate to the target node and highlight it. If the origin node is not shown, SHIFT-CTRL/CMD-clicking will perform the reverse navigation.
After you select a node, CTRL-C (CMD-C)
will copy the contained text into the clipboard. If no node
is selected, the text of the currently display tool tip (if any) will be copied to
the clipboard instead.