Address book groups are used in transaction and compliance policies to apply the same governance rule (such as an approved list of addresses).
Create an address book group
Go to Vault Settings.
Click Address Book Groups.
Click + New Group to open the form.
Enter the name of the group and click Create Group.
Add an address to a group
Go to the Address Book.
Click the 3-dot action menu of the address you want to add and select + Add to Address Group.
Select the group from the list and click Add.
This now requires admin quorum approval.