We have some TS meals that are parents only, so my wife and I will need to pay OOP at at least one meal in order to have enough credits to use elsewhere. Our children have enough credits to pay for all of the TS meals. My wife and I would like to choose which TS meals to pay OOP for, and it may (or may not be) the meals where it's just us. Is it possible to use credits for some people and pay OOP for others at the same meal? Or is it the case that you all have to use credits or all pay OOP?