On the "Job Recipient List/Review" page, you will see a list of the active recipients within your mailing.
There are headers for each column (ie - AcctNo, Name1, Name2, Address1, Address2, etc.) which are active links. By clicking on any one of these links, you will filter your entire list by that particular header.
This makes it extremely easy to find a particular recipient within a large address file. For an example, see the images below:
By default, your list will always be in the same order that it was uploaded as. The "AcctNo" header will be the default sorting header: