On the Droid Bionic, when you open the Contacts app, there is a group button.  After pressing this button, there appears four groups under the 'My Account Groups' heading.  The first group just has a "G" icon and contains all of the contacts that were downloaded from Google Mail.

There are three other pre-defined groups:  Work, Family, and Church.  They are red in color and appear to have a lock icon in their center.  These groups are empty, and I can't seem to discover how to add any of my contacts to any of these three pre-defined groups.

I have found where you can create you own new groups and add contacts to them, but I'd like to use the pre-defined ones if I could.  Anyone know how to do this?

Thanks.