In the upper-left corner of each viewport is a label bar that consists of three labels. Each label is a clickable shortcut menu to control viewport display.
Load Custom UI Scheme to load a different CUI file, then reload the original CUI file again. The label bar will become available after either the
new or original UI scheme is loaded.
The General viewport label ([+]) menu provides options for overall viewport display or activation. It also gives you access to the Viewport Configuration dialog, and includes options for xView.
The Point-Of-View (POV) viewport label menu provides mainly options that change what is displayed in the viewport: the POV, and also graph editor windows you might choose to dock in a viewport. A few other options change the viewport display without changing the POV.
The Shading viewport label menu lets you choose how objects are displayed in the viewport.
