How do I combine contacts from multiple groups into one group?

You can merge multiple groups into a single new group:

1. Click Contacts in the main navigation menu.
2. Go to the Groups tab.
3. Tick the boxes to the left of the names of the groups you wish to merge.
4. Go to the Perform drop down menu, and select Merge.
5. Enter a name for the new group, and click the Merge Groups button.