The HSL panel is a tremendously useful tool for taking finer control over the post-processing your images, both from a technical and a creative standpoint. This excellent video tutorial will show you why the panel is so useful and how to incorporate it into your photo edits.
Coming to you from Anthony Morganti, this fantastic video tutorial will show you everything you need to know about using the HSL panel in Lightroom. HSL stands for "hue, saturation, and luminance," and the panel allows you to take very fine control of the various individual colors in your images, including changing them, making them more or less prominent, and lightening or darkening them. For example, with almost every landscape or drone image I shoot, I like to bump the blue saturation up just a bit and bring its lightness down a fair amount. This tends to add a bit more pop and drama to the sky. Of course, I could accomplish this by creating a mask for the sky and adjusting the saturation and exposure that way, but it is far easier and quicker to do it in the HSL panel. There is a ton of creative potential hiding in it, and I definitely recommend giving it a try if you haven't yet. Check out the video above for the full rundown from Morganti.