Sorry, that’s not possible at the moment. My suggestion would be to use add different Text Snippets at the bottom of your listing description (see Window menu > Show Text Snippets), or customize the design you are using for each account to included the appropriate footer for each of your accounts.
Thank you. This is just what I was looking for. It took me a minute to figure out how to use the text snippets. Once the snippet was created, I had to add them to the design in editor mode. The pulldown menu to select the snippet was at the bottom.