Give the Audience group a name and click on 'Save Audience'.

To Edit an Audience, click on the 'Edit' icon.

The Update Audience modal highlights who created the Audience Group, and which channels are part of it.
You can add/remove audiences from this modal

The Update Audience modal highlights who created the Audience Group, and which channels are part of it.

You can add/remove audiences from this modal

Click "Update Audience"
To send it to the chosen audience, click on 'Send Campaign'

To send it to the chosen audience, click on 'Send Campaign'

Send a campaign to an Audience Group