@enigma all shapes that can be put in the oven can also be used for the airfryer, as long as it fits in the airfryer. You can also find others in the action, though.
@enigma I still have an xl myself, but if you mean what's at the bottom of the airfryer, you should leave that on. You can add any accessories you want in the basket. Which are also suitable for the oven, so.