If you want a more advanced version that auto finds all the gods that don't belong to your own custom category see
THIS. I wrote that for the Eberron Campaign system in Pathfinder.
It finds all the deity categories other than Eberron and tells HL to hide them in the list. Pretty sure this logic all exists in 5e. But this way you don't have to keep manually entering Thing ID's when new gods are entered.
Just hopefully the community deities all have category tags.