It makes perfect sense to me being that I did write that. It is also because I know what I am doing.
Pre-programming instructions are:
you can only monitor hunt groups if the call has been transferred there then transferred to you. You must also have no lines assigned to your phone and handsfree on your phone with 2 intecom paths.
Program everyone you need in a hunt group, set one supervisor, then do a Feature code, put in the password, put in the Hunt ground member dn, and it will listen in. If you want to join it will automatically connect you like a conference call.
If you don't know how to set up the supervisor.. you didn't read the manually. It tells you how to add a supervisor. Do a cntrl f and search for supervisor.
At this point I am going to recommend you to get someone who has much knowledge on the MICS 6.1 to come out there and program it for you. Just sounds like you never programmed one of the MICS before.
Nam555