What is a Dynamic Plan? How does it work?

What is a Dynamic Training Plan?
A Dynamic Training Plan allows training plan authors to build and manage a single exercise schedule which immediately updates the calendar of every user who has purchased that plan.  Unlike a traditional plan, where the buyer or the author must decide when to start the plan, a Dynamic Plan is intended to be used in real-time.  That is, if the author schedules a workout for Wednesday the 21st, it will appear on EVERYONE's calendar on Wednesday the 21st. As the plan is changed, for example, moving the Wednesday workout to Friday, everyone's workout will be immediately changed to Friday.  All changes or additions to the plan are immediately reflected in everyone's calendar that has that plan applied to their TrainingPeaks.com account calendar.

What is the price structure for a Dynamic Training Plan? Is the price of a Dynamic plan a subscription or a one time fee?
Just like non-dynamic plans purchased through the TrainingPeaks store, dynamic plans are one-time purchase fees that are not recurring payments.