We recently added a few more workouts in the library:
We Will Rock You - https://www.xertonline.com/workout/ejcq7lhuwmwxoeec - TTT training.
Gasoline - https://www.xertonline.com/workout/z9eooaf3hzsnvpu6 - VO2 training.
Closer - These are 4 separate workouts for specifically designed for VO2 training at various levels and length.