Go to Appearance> Customize> Header Settings to configure Header Slider Settings and Misc Settings 

Header Slider Settings

Please follow the below steps to configure Header Slider Settings

• Go to Appearance> Customize> Header Settings > Header Slider Settings
• Check Enable Header Slider in Homepage to show header slider in homepage.
• Choose a category of posts to be displayed on the slider.
• Click Publish.

Misc Settings

Please follow the below steps to configure Misc Settings

• Go to Appearance> Customize> Header Settings > Misc Settings
• Check Enable Search Form to enable search from the header.
• Enter Breaking News Section Label.
• Choose the category for Breaking News Section. If No Label is entered the selected category name will be displayed as the label.
• Click Publish.