Functionality that can predict what matter an email should be filed to. For example:

You save an email from johnq@client.com to the John-Q Matter for the first time.

The system remembers this association, and the next time you go to file an email from johnq@client.com to matter, LeWorkplace pre-selects the John-Q matter, allowing you to save the email to that matter with one click (or select a different matter).