Adam worked with me this morning to figure out how to get the result I wanted.
In order to do that, there are 2 properties that need to be set:
BreakElement - set this to BreakElement.Br
UseFontTags - set this to True
This can be done as properties of the Editor or via code in the Page_Load event.
Adam cautions that the resulting tags that are inserted are deprecated and may not be acceptable in some site construction.
However, we are interested in CuteEditor as a word processor, not an HTML editor, so it's fine with us.
Thanks, Adam for your help!
Fred