This might be a complicated question, but my family is headed down to WDW in about two months for 4 days. My sister is a cast member and we are using 6 of her cast member tickets to get my wife and I into the park for 3 days and we each bought a 1 day-1 park ticket for when we go to the Magic Kingdom. We plan on park hopping the other 3 days between Epcot, HS, and AK. We have all of these tickets linked to us in the My Disney Experience app so how do we guarantee that the 1 day-1 park pass gets used on our magic bands when we go to MK and not one of the cast member tickets? Hope that makes sense!