Place 3 cups water on the bottom of the removable cooking pot; place a rack down into the water.
Spray the silicone baking dish (or an 8-inch spring form pan wrapped with aluminum foil) with the non-stick oil spray. Combine the butter and graham cracker crumbs, press them into bottom on the dish.
Using a hand mixer, blend the cream cheese, sour cream, sugar and orange zest all together. One by one add the eggs, stir in the vanilla extract.
Pour the filling on top of the graham cracker crumbs, cover the top with foil. Use the trivet to raise the spring form pan above the water level. Tie the foil cover over the pan with kitchen string.
Lower the cheesecake into the cooker with a wire or piece of foil, carefully.
Close and lock the lid of the multi-cooker set the regulator knob to PRESSURE. Set the timer for 23 minutes on pressure cook HIGH. When cooking time is done, release pressure and uncover. Carefully remove the pan.