Availability Plan - filtering possible?

Moin: Assumed there are are items in several orders to be delivered in the future I want to prevent to run out of stock. Is there a report that shows me such items so I can place the appropriate order for these items? Or do I have to create such a report by myself? The report “Availability Plan” (#707) is very close to my ideas but I found no way to filter for a certain future period to see whether there are enough items for future orders ore not. Any hint will be appreciated. Regards Alarich