This is a basic question that has been covered a million times, I'm sure. We are going on a family vacation 1/3-1/10. My sister and her family are AP holders - and have Magic Bands. My family will be staying on property and we have a package and our Magic Bands. My folks are buying their tickets from AAA. If we buy Magic Bands from the Disney website, could their tickets be linked to the band so they can book FastPass+? If so, do we have to wait until the bands arrive? Or could the tickets be purchased and then we can book FP+ through MDE and link to the Magic Bands when they arrive to use in the parks? Thank you!