Undo Button
![editing window with a yellow box around the Undo Changes tab in the toolbar, and a yellow arrow pointing to mark reviewed](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/full_width/public/media/images/EditExistingStructure_NoChanges_C_ann.png?itok=wIkOJ2m6)
Detailed Description
If you’ve made any changes to a point, then the Mark Reviewed tab will be grayed out. If you did not intend to make a change, you can reenable the Mark Reviewed tab by clicking on the Undo Changes tab.
Sources/Usage
Public Domain.