I can’t guarantee anything but if you have two people both with APs you should be able to purchase G+ and book attractions together.
Here Is what I am learning about AP’s and
Genie+, especially as it relates to groups with some AP holders and some regular ticket holders.
Anyone with one of these mixed groups who has tried to make theme park reservations has already found out that reservations for AP holders come from a different pool than other ticket holders. So, they have to be booked separately and they appear separately if you look at your plans in
MDE.
At least for now, existing AP holders cannot add G+ to their tickets in advance. They will have to purchase G+ separately on each day that they wish to use it. That can be done after midnight (not clear if that is ET or PT), but it can be done before the 7 AM window for selecting the first G+LL opens.
Holders of regular tickets have the option of changing their current tickets to tickets with G+ access, but that is all or nothing and will cost $15 (plus tax) per day of the ticket. Some people might prefer to purchase G+ for only some of their park days, and that can only be done same day.
For our group of 4 (one AP, 3 daily tickets) if we all want G+ on a given day, that would be done in two separate transactions, one for me and one for the other 3. But, I was told by a CM in a chat today that, if all 4 of us purchase G+, we will then be treated as one group as we make G+LL attractions. I hope she was right.
As for a group with two or more who are all AP holders, you SHOULD be able to purchase G+ in one transaction and make LL selections together. When I pushed the purchase G+ button I got a message that I would only be able to purchase together with guests with the same ticket type. That certainly suggests that multiple AP holders can purchase together.
Hope this is accurate and helps. I will report when I return from our trip next month.