It's really not complicated. Start it up, choose your date, what attractions you want to go to, and push a button. It does the rest.
Yes, you can program in a scheduled break from the itenerary, at any time of the day for however long you want.
If you're the kind of Disney Guest who prefers to just wing it, though, this is NOT something you want to purchase. The entire point of this program is to give you a very regimented itinerary to follow to minimize your wait times.
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