Distributions & Pool Email Templates
There are email templates in Pool but each distribution does not save any content.
That means the only way to edit an email in Pool is to edit a template, which means as a best practice always click the continue button in a distribution to make extra sure your template has been updated (see below). This can lead to a lot of confusion because Step 4: Editor says "Auto Saved" at the top left, but in some cases the actual template won't be updated if you start a distribution and happen to switch to another tab or forget about it for a while (we do this a lot).
After you've sent a Pool distribution, you can sort, filter, and delete old drafts from Pool >> Distributions. Similarly, for any email template in Pool, you can sort, filter, and rename from Pool >> Templates, as well as create a new template from scratch.