Microsoft One Note Help

Just started using One Note and I can see how it will really help keep me organized.

I set up folders for all my projects and sub tabs to archive relevant outlook mail.  In outlook, I can sort my mail by date and subject.  This helps me keep things manageable as I can delete old mail if I sort by date but most importantly, I can filter by subject and delete all but the last response to a string of emails.

Once I move the mail to One Note, I cannot see any way to sort.  Am I missing something?  Not that it's a deal breaker, but my folders will get huge if I cannot remove duplicate messages or keep thinks longer than I have to.

Thanks!