https://elearnportal.science/w....iki/Cat_Flap_Install
To encourage your cat to use the flap, begin by playing and eating near it. This will help them become familiar with the sound of it opening and closing. You can also add your cat's smell to the flap. Next, let the flap open a little to give your cat the impression of movement. Try luring them through by presenting their favorite treat or toy. Certain herbs (such as clary sage, cat germander, and valerian) offer a enticing scent that many cats love. Installing the cat flap A cat flap lets your cat to move around at will, without hav