Hello, I'm currently thinking about a mythic build and a bit confused about a few things so I'd like to know if I understand everything correctly.
Beyond Morality (Ex): You have no alignment. You can become a member of any class, even one with an alignment requirement, and can never lose your membership because of a change in alignment. If you violate the code of ethics of any of your classes, you might still lose access to certain features of such classes, subject to GM discretion. Attempts to detect your alignment don't return any results. If a class restricts you from casting spells with an alignment descriptor, you can cast such spells without restrictions or repercussions. If you're the target of a spell or effect that is based on alignment, you're treated as the most favorable alignment when determining the spell's effect on you. Any effects that alter alignment have no effect on you. If you lose this effect, you revert to your previous alignment.
Divine Source (Su): You can grant divine spells to those who follow your cause, allowing them to select you as their deity for the purposes of determining their spells and domains. Select two domains upon taking this ability. These domains must be alignment domains matching your alignment if possible, unless your alignment is neutral. You grant access to these domains as if you were a deity. Creatures that gain spells from you don't receive any spells per day of levels higher than your tier; they lose those spell slots. In addition, you can cast spells from domains you grant as long as their level is equal to or less than your tier. Each day as a spell-like ability, you can cast one spell of each level equal to or less than your tier (selecting from those available to you from your divine source domains). If you're a cleric or you venerate a deity, you may change your spell domains to those you grant others. At 6th tier and 9th tier, you can select this ability again, adding one domain and two subdomains (see the Advanced Player's Guide) to your list each time and adding their spells to the list of those that you can cast.
1) As I understand it, if I choose Beyond Morality first I can freely pick my first two domains but don't get any associated subdomains (even though people who worship the character could still take them). If I choose Divine Source first as a chaotic good character I get the Chaos and Good domains and keep them even after choosing Beyond Morality.
2) Even though it's not explicitly stated I guess it is intended for the second and third time you take Divine Source to get a domain and the two associated subdomains.
3) Can you grant spells to yourself? Since Divine Source mentions the possibility that you can exchange your old domains for the ones you are granting others that seems to be a fair question. Also you can grant a total of 4 domains and 4 subdomains. The rule kind of sounds like you get them all in exchange for your old domains, even though it is explicitly forbidden to have both a domain and one of its subdomains. (That last part luckily doesn't concern me since it's a Warpriest/Inquisitor gestalt but I'm still curious).
4) What happens if one of your clerics (or other divine spellcasters) breaks your code of conduct? Do you know instantly? When he prays for spells the next time? Not at all until you find out?