As well as using copy and paste to transfer data between applications, you can copy and paste into dialog boxes and formula entry lines. You will need to make use of the shortcut keys to do this:
Ctrl+C Copy
Ctrl+V Paste
For example, in the text of a Write document, there appears the name of another document - a spreadsheet called Figures, say. To copy and reuse the word "Figures":
Select it by double-clicking on it.
Press Ctrl+C to copy it.
Switch to Spreadsheet.
Click the Open button .
Press Ctrl+V to paste it into the File name box.