ability to change date/time for multiple future orders at one time

We need the ability to be able to change the start date/time for multiple orders at one time. During the process of entering future orders, there is an option to change start date/time. However, if you choose this option while still in the pending orders screen, you get an error stating the date cannot be outside of the service date. You also get this error when trying to change multiple orders from the review screen. The only way to successfully change the start date/time is to choose each order individually. This can be very time consuming and cumbersome to a user if they are entering a large number of orders at one time.