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. Adjustments made to multiple photos using the Quick Develop panel are relative, not absolute. Any Quick Develop settings you make are recorded in the History panel of the Develop module, and corresponding slider controls adjust accordingly in the Basic panel.
Watch this video tutorial from Infinite Skills to learn more about Quick Develop: Adobe Photoshop Lightroom 4 Tutorial | Working with Quick Develop
Click the triangle button on the right side of any section in the Quick Develop panel to show or hide that section.
Choose a Develop preset from the Saved Preset pop-up menu. The menu automatically changes to Custom whenever you adjust other settings in the Quick Develop panel. By choosing the Default Settings preset, photos are automatically reset to Lightroom Classic default import settings.
Tip: To quickly navigate the Saved Preset list, type a letter to go to that part of the list. For example, type S to go to the Sharpening preset.
Crop photos by choosing a new crop ratio from the pop-up menu. To add more choices to the list, select Enter Custom, type new crop dimensions for the width and height in the Aspect Ratio boxes, and click OK.
Change photos to grayscale by selecting Grayscale from the Treatment menu.
Apply a white balance preset by choosing it from the White Balance pop-up menu.
Fine-tune the white balance by adjusting the Temperature and Tint settings. Click the arrow buttons to incrementally increase or decrease the Kelvin temperature, green tint, or magenta tint.
Adjust individual tone settings by clicking their arrow buttons. For example, adjust overall image brightness by clicking the Exposure buttons. Each click adjusts the exposure in increments of a third of an f-stop or one full stop.
Click the Auto Tone button to apply automatic Lightroom Classic settings for Exposure, Blacks, Brightness, and Contrast.
Tip: To adjust the tone automatically in photos, select the Apply Auto Tone Adjustments option in Presets preferences.
The single-arrow buttons adjust the settings in smaller increments than the double-arrow buttons.