17.1 Adding, deleting and changing branches
To add branches
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Select a node.
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Click the ‘Add branches’ toolbar icon which will add two branches.
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... OR ...
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Drag a node from the Tree Diagram Editor Palette to the right of the existing node. A red line will appear indicating where the node can be placed. Release the mouse when the new node is visible as a branch of the existing node.
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... OR ...
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Right-click on the node and select 'Add Branch' from the context menu.
To delete branches
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Select the node.
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Choose Edit > Cut from the menu to cut the node from the model.
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... OR ...
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Right-click on the node and choose Cut from the context menu.
To change a node's type
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Right-click on the node.
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Select Change Type from the context menu and select the new node type.
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... OR ...
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Select a node.
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Click the "change node type" icon on the toolbar.
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Select the appropriate node type from the list.
To zoom in or out of the Tree Diagram Editor:
Use the palette within the Tree Diagram editor:
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Click on the zoom in or zoom out icons (magnifying glass) in the palette toolbar.
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Click anywhere in the Tree Diagram Editor as many times as you wish to zoom.
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Click on the pointer/arrow in the palette toolbar again to turn off the zoom in/zoom out.
You can also use keyboard shortcuts to zoom in or out.
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Windows: Control "+" to zoom in.
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Windows: Control "-" to zoom out.
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Mac: Command "+" to zoom in.
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Mac: Command "-" to zoom out.
Navigating the tree using the keyboard:
In addition to using the mouse to select a particular node, it is also possible to use the keyboard to change the selected node.
Even if no node is currently selected, there is a keyboard shortcut that will select the root node.
To select the root node:
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Hold down the CONTROL key and press the HOME key.
To move the selection from the current node to an adjacent node, use the arrow keys. Try using the arrow keys to select the top branch.
To move the selection one node to the right:
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Press the right arrow key.
