In the Window menu, you can open a new window and see the document list.
Opens a new window that displays the contents of the current window. You can now view different parts of the same document at the same time.
Closes the current window. Choose Window - Close Window, or press CommandCtrl+F4. In the print preview of LibreOffice Writer and Calc, you can close the current window by clicking the Close Preview button.
Lists the currently open documents. Select the name of a document in the list to switch to that document.