Organizing windows on the screen
In this section:
Use these methods to organize the windows on your screen:
To disconnect a tabbed window from a tab group and place it as a separate window, drag it away from the tab group.
To dock a floating window, or to disconnect it from its group again, double-click on the window’s title bar.
To place a window in the same tab group as another open window, drag the window you want to relocate and drop it on the other window.
See also The layout of the windows on the screen.