we are doing the land/sea and have 5 day park hoppers and will only be using 3 days worth..if I want to add on the non-exiration option, do I pay for all 5 days or jus the 2 I am not using. Family lives in Fl and we go yearly. Also, we have a group of 10 going, can I add on to some of the others to use them i the following years? It would work out as a better deal for us, if we go frequently