You can set an overlay to display in one of the following layouts:
If you want to save your overlay configuration, refer to Create and manage overlay configurations.
Overlays that are not toolbars, such as the Orientation overlay, cannot use the Horizontal or Vertical layouts.
To change the layout of an overlay:
Overlays that aren’t toolbars, such as the Orientation overlay, collapse when they are docked to an edge of the Scene view and can’t be expanded.
To expand an overlay, right-click the handle (=) of a collapsed overlay and select Expand.