You can create profiles for games which may not be on the list, but you need to use an existing profile and copy it first. The profile has to be compatible with the game. Ie. the same engine, directx, unreal, etc. Some work, some won’t.
Not sure there is any other way to do it. It has to have some 3D first to actually start tweaking the profile with the built in “shader tools” you can find in the help.
Hooking refers to Vorpx getting its hooks in the exe and being able to display it in the HMD. If it hooks, you will see the VORPX logo on the screen and the game will show in the HMD.