After you use the Undo tool to reverse an image change, you can use the Redo tool to reapply it. The Redo tool can be selected only after you have used the Undo tool on the current study in this session.
To redo image changes
From the Image area context or top toolbar, click Redo.
Or, if using the context toolbar text menu (Ctrl + right-click), select Basic > Redo.
The change last reversed is reapplied.
To continue reapplying images changes, repeat step 1.