it is not possible because each package is assigned different port. You can add various ports and subscriptions in newcamd.list file, it's easy:
CWS = server 12345 login password 01 02 03 04 05 06 07 08 09 10 11 12 13 14 wan cardserv
CWS = server 23456 login password 01 02 03 04 05 06 07 08 09 10 11 12 13 14 wan cardserv
CWS = server 34567 login password 01 02 03 04 05 06 07 08 09 10 11 12 13 14 wan cardserv etc etc
Within one file, you may add as many ports from various subscriptions, servers, satellites etc as you want.
If you extend you existing subscription without interruption, you will need no changes - the port(s) provided remain the same.