To Assign a Capacity Group click the Relationships → Groups → Capacity Groups page, find the Capacity Group the needs to be assigned to a Trunk Group. Click on the three horizontal dots to the right of the Capacity Group Description and select Assigned Trunk Groups.
To Assign a Capacity Group a Capacity Group click the Relationships → All → Trunk Groups page, find the Capacity Group the needs to be assigned to a Trunk Group. Click on the three horizontal dots to the right of the Capacity Group Description and select Assigned Trunk Groups.
Click the name of the Trunk Group to add to the Capacity Group and click the Assign button. Repeat for every Trunk Group in the Relationship that should be added to the Capacity Group.