Yes. You can, as described above. But I wouldn’t. You appt time gives you early access to the back of the park (same access as an 8am Be Our Guest reservation. So instead I would go to a priority attraction (either ride 7DMT or princess meet or Peter Pan) you will beat the rope drop crowds to all of these. We chose to ride SDMT and we were still done early enough that we were 2nd group in-line to meet Cinderella. That early ride access is a perk of the 8am appt!