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+### Existing mouse actions
+
+| Action                  | On        | Behaviour   |
+| ------------------------|-----------|-------------|
+| Click                   | Workspace | *none*      |
+| Click-Drag              | Workspace | Lasso       |
+| Cmd/Ctrl-Click          | Workspace | Quick-Add dialog |
+| Click                   | Node      | Select node (deselect all else) |
+| Shift-Click             | Node      | Select all connected nodes |
+| Ctrl-Click              | Node      | Add node to selection |
+| Click                   | Link      | Select link (deselect all else) |
+| Ctrl-Click              | Link      | Select link (deselect all else)
+| Click-Drag              | Port      | Add link    |
+| Shift-Click-Drag        | Port      | Move links  |
+| Ctrl-Click              | Port      | Start adding link - click on port/node to complete |
+
+### Actions to support
+
+ - *modifier*-Click-Drag on workspace to pan around
+ - 
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