Thanks for this.
Ironically my friend and I bypassed 4e (we were playing FATE and Savage Worlds) and have come to it via 13th Age, 5e and Pathfinder 2e, with a parallel detour into True20.
So thanks.
I realise this isn't being maintained, and I guess that's why there is no option for Cleric Lore, or was it not openish content?
The post here
https://forums.wolflair.com/showthread.php?t=61071
does not seem very clear to me.. I can't follow the steps and might need a screenshot.