N2 Information

Left-click on a node in the model hierarchy to navigate to that node.
Right-click on a node to collapse/expand it. Alt-right-click on a node with variables to select which ones to hide.
Note: Right-click in Firefox displays a browser menu. To disable that, visit about:config and set dom.event.contextmenu.enabled to true.
Hover over any cell in the matrix to display its connections as arrows. Click that cell to make those arrows persistent.

Toolbar Help

Snapshot of toolbar buttons
Variable Name Visible