It sounds like your original party was already 2 adults. I am pretty confident that only 1 child under 3 can be added above the 4 person occupancy limit on regular rooms.
Aside from that, I would be looking for a way to not be 3 or 4 adults + kid(s) in one value room. I know that some families would be fine, but that would not be my choice. FWIW the ASMu family suites are awesome... in preferred buildings with a full size refrigerator and microwave. It may not always be the case, but often you can find a value resort option where getting 2 standard rooms is less expensive than the ASMu Family suite. (When searching, be sure to adjust the occupancy accordingly. 2 adults in a standard room is a little less $ than 3 or 4 adults in the same room.)
(I can't speak to whether or not two pack and plays can fit with the second bed down.)
I'm sorry for the confusion...no, my husband and I have our own room already booked. My daughter will be 2 adults, 2 kids ages 2 and 6 months, so only 4 total in that room. She is just very concerned about needing 2 pack and plays. Our last trip, her daughter was 1 and in that room at all star movies, they could have fit 2 pack and plays, one on each side of the counter. However, our room beside them had a longer counter. Just some uncertainty there. Sorry for the confusion in my initial post.
It sounds like your original party was already 2 adults. I am pretty confident that only 1 child under 3 can be added above the 4 person occupancy limit on regular rooms.
Aside from that, I would be looking for a way to not be 3 or 4 adults + kid(s) in one value room. I know that some families would be fine, but that would not be my choice. FWIW the ASMu family suites are awesome... in preferred buildings with a full size refrigerator and microwave. It may not always be the case, but often you can find a value resort option where getting 2 standard rooms is less expensive than the ASMu Family suite. (When searching, be sure to adjust the occupancy accordingly. 2 adults in a standard room is a little less $ than 3 or 4 adults in the same room.)
(I can't speak to whether or not two pack and plays can fit with the second bed down