Void multiple payments at once

In addition, I'm trying to find a loophole by using the Payment feature and using "Other" as the payment method, but why does it now include the entire balance even for future reservations forcing me to still go in one-by-one to remove it from the payment? 

This feature would be so helpful. We cancelled an event with multiple dates over multiple weeks, and I am currently having to go through and void every single registrant for every single day. It's wasting so much of my time.