Specialized Pop-Up Menus

[allender@aristotle.ils.nwu.edu (Allender )]

Howdy.

I am trying to create a specialized version of pop-up windows which 
have a minimum width and some other font.  In Inside Macintosh:
Toolbox Essentials I discovered two commands which come close -- 
popUpFixedWidth and popupUseWFont (page 5-28).  From their descriptions
these sound like what I want, but I'm not sure how to use them?

Has anyone have code that adds one or more of these features?  
If not how/where do I add this code to make a modified popup class?

Thanks.