While reading through the forum, I see that many members are using the Incremental Content Plugin by giving away products at fixed intervals. But can this plugin be configured for non-fixed intervals? For example, lets say that I am selling a product. The length of this subscription for this product is 90 days. During this 90 day subscription, I will be offering some other products for free as they become available. Can the Incremental Content Plugin be used to handle this?