When creating a deity you can now assign it an explicit tag to control what order the deity is shown in the selection list. Any diety with such a tag is shown before other, untagged Deities (such as the default golarion deities), and those with the same explicit tag are sorted then by their category and name. The higher the explicit tag's value, the lower that grouping appears in the diety list (but always before those without a tag). For example, you could create a national pantheon and give each god belonging to it a explicit.3 tag, which would cause them to group together before the default golarion deities. Within that grouping however, they would be organized alphabetically. You could then define several gods related to a particular mountain, give them all an explicit.10 tag, and they would appear below the national pantheon (but still before the Golarion deities) in their own group organized alphabetically. Within the editor, this is referred to as the "Deity Category Order Group".