⌘ Mac · Ctrl Windows

• Enter Add a child node
• Tab Add a sibling node
• Space/E Edit the node (or double-click)
• Esc Finish editing
• ↑↓←→ Move between nodes
• . Collapse / expand a branch
• ⌫ Delete the node
• 1234 Layout: balanced / right / left / down
• C Recenter the view
• ⌘/Ctrl+Scroll Zoom in / out
• ⌘/Ctrl+Z Undo (＋⇧ to redo)
• ⌘/Ctrl+S Save menu