https://www.openlearning.com/u..../justicemorgan-smi0b
https://notes.io/w6uXp
https://jsfiddle.net/linecamp96/ae3q15pL/
Begin by feeding them and playing near the cat flap. This will aid them in becoming familiar with the sound it makes when it closes and opens. It can also help when you add your cat's scent to the flap. Next, prop the flap open a little to give your cat a sense movement. Try to entice them by holding their favorite treat or an item toy. Certain herbs (such as cat germander, clary sage and valerian) are arousing scent that many cats love