Show the number of child nodes in a collapsed branch
For collapsed braches, in addition to the node box graphic changing to a set of 4 stacked nodes (which bears no relation to how many nodes have been hidden) add a label to the stack graphic which shows the number of child nodes that are hidden eg (+23). Clicking on the stack/label or using / would then expand the child nodes. Similar to the paper click for attachments
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Mark Farbus
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