Player 2: Join player 1 on the light bridge and once you’re in line with the red button (located to your right), you need to set a portal on the end of the light bridge and then on the left-hand wall so the bridge crosses over right to the red button.
Player 2: Run down the light bridge and set your portals on the two wall panels in the corner of the room. Once the two light bridges are ready, let your teammate know.
Player 1: Press the red button to release the repulsion gel onto player 2’s light bridge. Instruct them to jump off of it, onto the ledge ahead.