The image shows the Viewing Page Difference dialog. Availabe controls include: Undo, Redo, Search, Previous Change, Next Change, and the Settings menu. The image shows two Working Copies. In the first Working Copy the MILESTONE_ID column is set to type: Hidden. In the second the Working Copy, the MILESTONE_ID column is set to type: Plain Text (based on List of Value). Additional information about this image can be found in the surrounding text.