<p>Can I change my essays and stuff between Nov 1 and January 1 deadlines? If I have to create another account, is that allowed/ethical/frowned upon, etc?</p>
<p>No, the Common App will not allow you to change your application once you submit an application. I don’t really see why you would find it necessary to change anything.</p>
<p>I think the OP is referring to different schools if new information arises, i.e. apply EA to a few schools, acquire new information, change app for Jan 1 schools.</p>