Mouse Controls

• Rotate View: Left-click + Drag
• Pan View: Right-click + Drag
• Zoom View: Scroll wheel
• Move Atom: Ctrl + Left-click + Drag
• Delete Atom: Ctrl + Right-click
• Create/Increment Bond: Shift + Click atoms

Touchscreen Controls

• Create/Increment Bond: Tap atoms
• Delete Atom: Double-tap atom
• Move Atom: Long-press + Drag

Keyboard Shortcuts

• Cancel Action: Esc
• Cycle Helpers: ← / → (placement mode)
• Confirm Placement: Enter (placement mode)