Resources Access Restriction : Guest Only Access

Hi,
I am using "Restrict access to part of Joomla articles" (within membershipprodoc.joomservices.com/resources-access-restriction ) to expose different divs to different users. It works just fine!
However, I would like to make one of the divs only visible to unlogged in (i.e. Guest) users.
The ideal way might be {mprestriction ids="0"}Guest User Only Content{/mprestriction}
Thanks very much!
Gary

Tuan has pointed out that this is already supported: {mprestriction ids="!*"}Guest User Only Content{/mprestriction}