I'm trying to add a station to a multi-call group. However, I want it to ring on a specific key. What is the best way to go about this?

My initial thought was to create a Pilot DN, add that to the MCG and then assign the Pilot DN to the key. However, when I tried to add the Pilot DN via the Secondary/Phantom DN dialog, I received an alert that the Pilot DN was in use elsewhere.

I think I must have a fundamental misunderstanding about how Pilot DNs work.

If anyone could point me in the right direction, I'd really appreciate it.

Equipment Type: CIX670 : B--U
Equipment Version: AR2.21 MH116.00