Google Groups - Add a manager to your Google Group

If you’re a manager of a Google Group, you can add other members as managers to share administration of your Group.
Layout:
one column
two columns

Step 1

Sign in to Google Groups.

Step 2

Click the name of the group you'd like to add a manager to.

Step 3

Under the People heading on the left, select Members. 

Step 4

Find the person you want to promote to moderator, and select the Role drop down, then click Manager. Make sure to save your changes.

Please Note: Setting an Owner is not available, but the Manager role should be all you need to administer your Google Group.