Handy controls:

• Arrows or J/K/L/I – move node selection
• Double-click node – rename (Enter=save, Esc=cancel)
• Drag node – reparent; drag to Trash=delete
• Mix (M) – shuffle tree; Shift+M or right-click Mix includes WordBank
• Word Dock – Click=select, Shift+Click=multi-select; drag to tree/Trash
• Ctrl+A over Dock – toggle select all chips
• F=Fit • W=Dock • A=Input • U=Undo • P=PNG export
• Settings – adjust spacing, detectors
• Esc – close modal/editor