Sheets Control Bar

To hide or show this control bar:

Home ribbon >> Window >> Show >> Sheets Bar.
Enter "toggle-sheets-bar" into the Command toolbar to toggle the display of this control bar.

The Sheets control bar is used to manage the various data window's sheets, projections, views and overlays.

Note: Sheets control bar functions and more (including file management functions) are available on the Project Data bar.

The Sheets control bar also lets you manage the data objects from which overlays are derived; you can save, load, unload, reload and refresh data objects as well as making the parent object "current". See Current Object Concept.

With regards to the object overlay (remember, this is just one representation of a data object, and possibly one of many in memory), the Sheets control bar manages displaying and hiding items, formatting overlays and editing the associated overlay visual settings.