Batboard

I'm wondering if there is any way to add more the four quick call systems in signalling section of this radio. I need it because my ems agency has four pagers thought the radio systems on the same frequency but what i need is to be able to at one more group do to we are getting another shift added. But i have tried setting it up as A-B/C-D but some crews when there are ON-CALL and sleeping they are getting woke up for the C-D tones. Pleas help

As far as adding more than four systems AFAIK if the CPS won't let you add more than four then there's no way around that.

four is the limit, no way around it