Automatic creation of orders from Blanket Orders

Does anybody use Navision in such a way that Purchase Orders are automatically created from Blanket orders on a periodic basis? We have contracts with some of our suppliers for which we are invoiced on a periodic basis and the way our accounts work, PO’s are monitored to give an indication of expected outgoings. I was going to look at a spot of bespoking to schedule a job that makes orders based on a scheduled order frequency but was curious if there was already anything in the system to do this for us (or alternative solutions). We’re using 3.7. Thanks in advance

I belive the blanket ordering are a manual process. You have to manually change the qty’s on the Blanket Order Line, and then generate an order from it.