You can apply the different powers to each deity directly in their Faction entry. In the editor each faction has button that says "edit" next to its descriptor of Valid Powers. This is on the bottom left, above sources. You then check each and every power on the list. It is tedious, and in the case of duplicate versions of the same power name it can be tricky because you need to be certain to check mark the correct one. But as tedious as it is, once it is done it is done if you remember to save it.
