Create tasks against allocated order lines only

Summary:

I am looking for a method in which I can create inventory allocations against order lines in mass without creating tasks. This would act as a way to create reservations by required ship date. After allocations are completed, maybe many times throughout the day follow the same rule set, I would like to be able to create tasks against those allocated lines based define rule sets (like NOT a pickup customer, not Customer Name, Required ship date < d, etc). While I want to allocate in full, I to necessarily have tasks created for all allocations.

The point would be to create a type of reservation system in WMS but only create tasks against those allocated (reserve) lines on demand.