Buttons have in-built states like Normal, Down, Visited and Disabled states. Even you can customize the states according to the requirement in the course. These in-built states could be changed according to user interaction like hover over, click, etc. When you want to apply one of the button properties to all the new buttons of the same format, give a right-click and select Set as Default Button. To delete the button, select the button and hit delete on the keyboard.