A Bond

Surely this has to be a feature that can be implemented. Neither in products in the store, nor in subscriptions does there seem to be a way to create say a one year subscription to a product or forum that ends after a year. Or even a subscription that ends after a specific date. What is up with that? If I have to do this manually, which can be incredibly time consuming if I have more than a handful of how do I cancel a customer's subscription, this is totally unwieldy.