Swing out from the platform, bring your legs up at the front end, pass them under the bar and hold them straight in front of your face in a whip position. At the backend, push your straight legs over the top of the bar and follow with your body. Let go of the bar and grab the trapeze cables. Pull yourself quickly into a sitting position. Once seated, use the cables to pull yourself to standing. As you approach the frontend, lean backwards and push your feet (and the bar) up to the sky. Let go of the cables androtate around to give your legs to the catcher.
This trick is analogous to the Seat Roll to Legs, but from a Standing position. The timing and distances are usually tricky and you'll need to travel a bit to reach the catcher.
You can find out more about this trick in my books:
Thanks to the team at Circus Arts Australia for providing this video.