There are 3 ways to add Friends & Family. Even by using the "import from a Disney reservation," you will end up adding them for each person. So I typically add them manually.
After linking your reservation, you will see the Resort Hotel circle populated, as well as the Park Tickets. A date will also populate under Dining as to when your Advanced Dining Reservation date begins.
This is the main section of My Disney Experience that will house your plans (itinerary). There is a second tab labeled "Tickets, Passes & Memory Maker," select this tab to review your tickets.
As we build your trip, this itinerary will grow and will include your Advanced Dining Reservations (ADRs)