We are planning a trip to disney and our 5 year old is not able to walk stairs, stand or walk for long periods, and must wear a leg brace at all times due to a congenital defect of his tibia. We were going to bring an umbrella stroller for him. We also have 18month old twins(with a double stroller).It will only be my husband and myself. I am wondering if the strollers will be allowed in line the whole time, if we obtain a GAC. I am not sure how we would use the childpass system for the rides the twins can't ride. They would have to be in their stroller- 1 person cannot hold both at the same time, while the other adult rides with the 5 year old. Will they allow this??? I could also put the 5 year old in the stroller with one twin and hold the other if this would help out in lines. Any suggestions. Is this even doable???