Tri–light extension in Blender
I just learned about the “tri light” extension that, once installed, will automatically add three lights to your scene: a key light, a fill light, and a back light pointing at the object that you have first selected before implementing the tri light menu item. It will also lock the lights so they always aim at the object, even when you move the light or the object. In Blender version 4.5, go to Preferences> Extensions ( not add-ons, and search for “TRI”. Then choose to install. (it's free). Then select an object in your scene, select Add Light from the Add menu, and you will now see a new choice to add Tri Light. The three lights will be automatically added. I hope this helps you!