How to cancel edits
To undo the last action, press Ctrl + Z (on MacOS, Cmd ⌘ + Z).
To redo an undone action, press Ctrl + Y (on MacOS, Cmd ⌘ +Shift+ Z).
Data editing in the Inspector is considered a single action, even if you have edited multiple fields, so one click on the Save button is considered one action.
To cancel unsaved changes in the Inspector, click Cancel at the bottom of the Inspector.
Copy/move and paste are considered a single action, even if you have copied multiple objects.
Find and replace are considered a single action.