To edit a Group you have created before, follow these simple steps:
Step 1: Go to ‘Contacts’ > ‘Groups’.
Step 2: To the right of the Group you wish to edit, click on ‘Edit’.
Step 3: A box will then appear displaying the setting options for the Group you wish to edit.
Step 4: Once you are happy with the new setting options, click ‘Save’.
Your Group will now be updated.