After creating a Native Google Group, you may have to add new members. You can change the roles of these new members, so that they could also adjust the group membership and the roles of the other members.
Instructions
Getting to your Native Google Group's "Settings" page
Additional settings
You'll have to get to your Native Google Group's Settings page first, before configuring the additional settings detailed on this Confluence page. All the settings on this Confluence page are recommended.
Step 1
Log in to Gmail.com. Be sure you're logging into the account that owns your Google Group.
Step 2
Go to the Google Groups app. Click More to find the Google Groups app, if necessary.
Step 3
You should already be in the My groups section. Search for the group you're wanting to change. Click the settings icon.
You should see your groups name on the left-hand side, with a bunch of settings underneath
Configuring a Google Group for multiple domains/organizations
Step 1
Go to the Groups settings section, and scroll down until you see Allow external members. Click On.
Step 2
Click Save changes.
Inviting members
Step 1
Click Members.
Step 2
Click Add members.
Step 3
If you choose to invite members
If you choose to add members directly
Leave this switch gray.
Enter the names or email addresses of the members you'd like to invite.
Provide an invitation message.
Click Create group.
Click this switch, to change it to blue.
Enter the names or email addresses of the members* you want in your group.
Enter the names or email addresses of the members you want to manage* your group.
Enter the names or email addresses of the members you want to own* your group.
Provide a welcome message.
Choose the subscription option** for the group members.
Changing a member's role, subscription frequency, and posting permissions.
Step 1
Click Members.
Step 1
Click Members >> All members first.
Step 2
Select the members that you would like to change the roles for, then click Actions >> Add to role OR Remove from role and choose the role to add/remove.
Step 1
Click Settings >> Email options.
Step 2
Adjust these settings to fit your needs. You could leave these settings unchanged, if you wish.
Click Save.
Step 1
Click Information >> General Information.
Step 2
Check Allow posting by email, then Save.
Step 1
Click Members >> All members.
Step 2
Click the members you'd like to remove, then click Actions >> Remove from group.