The Slider section in the Benevolence theme Customizer contains 4 options. Navigate to Appearance → Customize → Theme Options → Slider to access these settings.

Options

• Custom Post Type Slider (On/Off) — Enable or disable the built-in slider using the Slider custom post type.
• Order Slider By (Select) — Order slides by post date or menu order.
• Revolution Slider (On/Off) — Use Revolution Slider instead of the built-in slider (plugin not included).
• Revolution Slider Alias (Text) — Enter the Revolution Slider alias.

After making changes, click Publish at the top of the Customizer to save your settings.