The Quick Develop panel in the Library module gives you the convenience of quickly applying image color and tone adjustments to one or more photos without leaving the Library module. Any Develop settings you make are recorded in the History panel of the Develop module, and corresponding slider controls adjust accordingly in the Basic panel.
Click the triangle button on the right side of the Quick Develop panel to hide any of the panel sections.
Click the triangle 
button on the right side of the Quick Develop panel to hide any of the panel sections.