The save file is a relatively unknown feature , you can purchase up to 2 save slots for saving your creatures you created. The cost for it is 150 robux
How To Save
After you have the gamepass make a creature in the bottom area right to the DNA counter you will see a save button then save to one of the save slots you have. After you do that go back to the main screen and to the right of the create a creature button you will see your saved creature you can spawn
