My son wants to ride Space Mountain (44") but my daughter won't be tall enough. Can I make FastPass+ reservations for husband and son at Space Mountain, and daughter and myself at Meet Anna&Elsa? And then can I switch and have my son and I ride Big Thunder Mountain Railroad and husband and daughter ride Enchanted Tales with Belle? Then ideally we'd all want to ride Buzz Lightyear's space ranger spin together with FastPass. Is this even possible or will I need to schedule three FP with all of us then grab extra FP for splitting later?