1. The Move menu offers options to move and archive the current message, as well as create new labels or mark as spam.
2. Typing text into the search input allows you to find an existing label, and offers the user an option to create the label if it doesn't exist.
3. This shows a match against my string "T:cyc."
4. Gmail only matches from the beginning of the string in their search capability. MailPlane's labelling panel (CMD-L) allows you to search for labels and matches anywhere in the string. So in my scenario above, I can find "cycling" without entering my prefixes.
5. The Label menu allows you to find labels and click checkboxes to apply more than one label to the message. Prior to this, Gmail users had to click the Label drop down menu repeatedly when adding more than one label.
6. Users click the apply button in the drop down menu to add the labels that were checked off.