How can I change the spacing between lines of text that are contained in one field?

In the text editor, you have options for paragraph, bullets, indents, etc., but I do not see where you can change the spacing between lines of text.  (i.e.: single space, double space, etc.)  Please help!

To clarify, are you referring to "Text" element? You can reduce the line spacing under FORMAT > BLOCKS > DIV.

ex.

I hope that helps. Let us know if you have any questions or if you need further assistance.