What new system - just confirming that you're talking about the ISICS simulcast in the Des Moines Metro? In the past it was just referred to as the Westcom simulcast. If that is what you mean the data is correct in the database as site number 2. The simulcast has been live for sometime. The comments above are just mainly talking about sites being added as well as channel capacity. Seems like these additions are because of Des Moines joining the system.
You can add the additional channels and add additional talkgroups or scan for new talkgroups on your scanner depending on how it works.