Why is it IMPOSSIBLE to ((set)) a scheduled email back to a "draft" so I can revise it and then reschedule it?

Why is it impossible to ((set)) a scheduled email back to a “draft” so I can revise it and then reschedule it?

Can anyone explain to me how this is impossible to do??? such a simple COMMON email system thing in ALL the OTHER email marketing tools on the internet but NOT WITH INFUSIONSOFT??? WHY??? THIS REALLY IS INSANE THAT THE THIS WAS OVERLOOKED???
Inside Constant Contact you can switch an email that you have finished and scheduled to go out --> BACK AND FORTH FROM SCHEDULED TO DRAFT so that we can revise it for the client as needed…
WHY IS THIS SIMPLE LITTLE THING IMPOSSIBLE WITH INFUSIONSOFT???
for the most part a great platform… but somehow the developers missed this one??? how???