How do I undo/redo an action that was done incorrectly?

Use the keyboard shortcuts below:

• Ctrl / Cmd + Z: Undo (or use the back arrow on the left side of the screen).
• Ctrl / Cmd + Y: Redo (or use the forward arrow on the left side of the screen).

Note: These shortcuts are not applicable for actions such as Autofill, applying layouts to the whole book, or inserting and deleting pages.