It's an ADR (Advanced Dinner Reservation) and reserved seating for CP. The CP seating is not assigned seating. Rather, it's a reserved section where CP diners are seated as they arrive.
The regular line for CP can often mean an hour wait, so reserved seating is a big plus. Also, you can get restaurants you couldn't get with a regular ADR. There is a cutoff on the reserved seating, so if you wander around and show up late, your seat will NOT be waiting for you.
Last year, the CP packages were available under
DDP. They have not made the CP announcements yet, so we don't know for this year. I think yes, but we won't know until they make the announcement.
Once they make the announcement, it will be important to pounce quickly, because the packages will go fast..