Many people know that LUTS or look up tables are a feature in Adobe Premiere’s Lumetri controls that you can use different settings to make camera RAW footage look good for rec 709 or whatever format you are editing in. And Premiere has some technical and various Creative LUTs to quickly fix or change footage. And you can use your own LUT, but you have to select that LUT individually every time from your hard drive, as there is no way to add it to the menus in Premiere or After Effects.
Well a quick Google search has various links to sites that explain how you can add your own LUTs to Premiere Pro. Here is one at Premium Beat. The thing is there is a problem with this method.
In this method you open the application package contents, go into the Contents/Lumetri/LUTs/Technical folder and add your LUT and restart the program. Obviously this is something that is changing the actual application so it should be done at your own risk, and any update will likely wipe out your LUTs, but if you are going to do it, YOU SHOULD KNOW THIS!
If you want the LUTs to work in Premiere and to be able to export them with Adobe Media Encoder or use them in Adobe After Effects you need to also install your LUTs into those programs as well. There is no central repository for these LUTs!
Now I have requested with Adobe that they add the ability to add your own LUTs to the menus in a central repository, but that doesn’t mean the feature will be added ever.