The undocked state in a UI pane layout allows the pane to float freely, enabling users to reposition it anywhere on the screen.

1. The undocked state allows the pane to be moved freely enabling users to reposition it anywhere on the screen. Helpful when needing to see more or less information at once or focus on specific content in the pane.
2. This becomes extra useful for users with multiple monitors – Users can drag the undocked pane to a different monitor, allowing for better use of screen real estate when working with multiple displays (as others have pointed out in the comments above)

The undocked state in a UI pane layout allows the pane to float freely, enabling users to reposition it anywhere on the screen.

The undocked state in a UI pane layout allows the pane to float freely, enabling users to reposition it anywhere on the screen.