１Undo・Redo
Clicking these icons will allow you to undo and redo actions.
Undo/Redo Shortcuts
These functions can also be assigned to the volume buttons on your smartphone.
Settings
①Click on the menu icon on the lower left-hand side of the canvas.
②Click on ‘Settings’ , uncheck ‘Don’t Use the Volume Keys’.
③Click the arrow on the top left to go back to the canvas screen.
