Move child windows outside main Origin window.
Window: Float Window submenus to disable this feature, or set different floating behavior.
Independent - minimize/restore main window will NOT minimize/restore float window
Synchronized - minimize/restore main window will minimize/restore float window.
Disable - turn off the feature
Window: Retract Floating Windows (Ctrl+Shift+F9) to bring all floating windows in current folder back into main window.
Window: Float Active Window (Ctrl+F9) Make active window floating in last used 2nd monitor.