I frequently want to e-mail the WordPerfect (WP) file I'm working on to a specific address. Within WP, I can click on "File," select "Send" from the File menu, then select "Mail" from the Send menu. This puts up a Thunderbird mail message with the WordPerfect file as an attachment. This e-mail message also has a default e-mail address in the From field. I can change this address by selecting another one in the From pulldown menu, but I'd like to change the default e-mail address to the one I use most often (thus avoiding constant need to use the From pulldown menu). How do I do that?