Feature Request: Ability to manually combine clients

I would like the ability to manually combine clients together so that they are represented as one. This simplifies viewing statistics for a single network device.

In my ctrld's client list, I see the same network device represented with the same hostname but different MAC addresses. Other client's have the same MAC address but different hostnames. Being that the default for client_id_preference is to generate a client ID based on the MAC and hostname, some network devices are represented by two or more clients.