Each section has a varying number of rows and seats per row. If you already have tickets, find your seats for row and seat numbers.
As you face the stage from your seats, lower number seats are on your right.
There are indeed dedicated entrances available exclusively for fans with a Platinum Level ticket at American Airlines Center. The Northeast Platinum entry gate is located at the north end of the area, just off of All Star Way and across from the Audi Park Garage. The Southeast Platinum entry gate is located at the east side of the arena on Houston Street, between the Jack Daniels Club and the east doors.