Using keyboard shortcuts
You can see some of these displayed alongside the Main menu access keys in the drop-down submenus.
Example 1: Press the Insert key to add a new child node
Example 2: Jump between the Tree pane and Article pane by pressing Ctrl+Tab (in the default setting). (Note that 'Ctrl' is short for the Control key)
Example 3: Press the Delete key to delete a node.
Note: Some keyboard shortcuts are disabled, or have different effects, depending on whether the Tree pane or Article pane has focus at the time the shortcut is activated.