We did the BB F! package and had 1 person in a wheelchair, another with a total knee replacement (DH, he walks fine but cannot sit on the ground unless he can straighten out his leg), and a 78 year old who cannot sit in the ground. Basically DD and I sat on the ground by ourselves - DH tried but it gets crowded and he did not have enough room to stretch his leg. The wheelchair was right behind me and DD, they are placed on the back border of the section - there is a half wall that could be used for sitting except you are not allowed since the walkway is between this wall and the sitting section.
DH and my DFiL were taken to the VIP section so they could sit - we could not go with them. I was very surprised that this scenario had not been dealt with before, the CMs acted like they had no clue where to put us all. They did do their best with what they had and with the rules they had to follow.
I had asked, when making the ADR, about our concerns regarding all of our disabilities. I was assured that there was a specific section with a bench for people with disabilities but no wheelchair. I had no reason to doubt since for WoC we were placed in a special section that had 2 benches - DD and I sat on the ground, DH actually preferred to stand, and one person used the bench while the other stayed in the wheelchair.
It was such a cluster it soured the whole thing, not doing that again unless it is just DD and I.