1. Add Mark Keynote Location to the context menu of
each node. Currently, one must make the node active
(displaying the contents of the node) in order to mark
it then go back to the working node to insert the link.
If there were a menu command, then the working text
would remain displayed, the node marked, and the link
inserted in the working text area.
2. Be able to view and work on the contents of at least
two nodes at the same time.