You can undo any changes you make by clicking the <code>undo</code> icon below the preview.
<img src="https://cdn.livechat-files.com/api/file/kb/file/12580155/ee99f4d408-77761ba3d98e8fef8b9c.png" alt="undefined" style="float:none;height: undefined;width: undefined"/>
And, you can redo any changes you undid by clicking the <code>redo</code> icon.
<img src="https://cdn.livechat-files.com/api/file/kb/file/12580155/d678c98e13-8eb683a50c3ff1306d78.png" alt="undefined" style="float:none;height: undefined;width: undefined"/>

You can undo any changes you make by clicking the undo icon below the preview.
 
And, you can redo any changes you undid by clicking the redo icon.
 


How can I undo or redo my edits?