About the window toolbar

The window toolbar, available on most windows, is located near the top of the window, under the window title bar, see the screenshot below:

It may include standard and window-specific buttons.

You use the standard buttons on the window toolbar to navigate through objects and entities that were created by using the current window, insert or delete an object or entity, use the clipboard, save the data you have entered, or cancel your work on the window.

In addition to standard buttons, a window toolbar on a particular window may include window-specific buttons.
These buttons usually provide navigation to other windows, take specific actions, and perform modifications or processing related to the functionality of the window.