How do I press "back" button for android when I'm on play mode?

Hello!

I’m trying to test if my game uses the script I created for the back button, but I don’t know how to use it while I’m on play mode, Is there any way to press it on play mode?

I think escape key is mapped to back button in the editor.

KeyCode.Escape works for the back button, KeyCode.Menu works for the menu button

Thank you so much! It works!