version's so rad it skipped a whole version
The TF2-Trifecta 2.1 introduces a new versatile tool: The Pose Library (like the pose asset library but for faces). This will allow you to store configurations of a merc's face so you can re-use that pose over and over. This would be very helpful for things like lip-syncing, where mouth shapes are re-used over and over.
All config files are stored in a .json file in the root directory of the addons folder.