So, I'm reading through various bits of Changeling, and a question has occurred to me. When a group of changelings are sharing a Hollow, how do they pay for the merit? If each wants to contribute 2 dots, does it cost each of them 6 XP for the two dots, or does it cost more depending on how they split the dots up? Also, if one of them wants to add a third dot to the shared merit, do they pay an additional 6 XP, or would it cost them 14 XP, as that would be the 7th dot? And if I missed where it clarified this in the core book, please tell me. I looked over the merit, but all I could find was the explanation of cost for a single changeling, where the total dots between aspects are added for determining the cost of another dot.