The OBi200 Series has 2 auto attendants; 1 is dedicated to device admin; the other is for user call processing.
The emulator you reference suggests adding the OBiPlus adds 2 more auto attendants. I'm not sure how they can be used, but I would not be surprised if they are intended for OBiPlus usage, whatever that might be.
But to your original question, "OBi202 supposed to have multiple AAs?", your OBi202 has only 1 auto attendant that you can use for call processing.