• Slides: Press the Add New button in order to add a new slide.
• Revolution Slider: If you have Revolution Slider installed and want to use it on your home page, switch this option On.
• Revolution Slider Alias: Only available if you have enabled the above option. Enter the name of your chosen slider from the plugin to display it on your home page. For example, if the shortcode given to you by Revolution Slider is [rev_slider alias="slider1"], enter slider1 into this field.

The default header image has a priority over other sliders and it will be displayed first. Go to Appearance → Header → Hide image if you want to use the built-in slider or Revolution Slider.