Start by downloading the Tension Board app. The app allows you to connect to the LED system on the wall and access thousands of bouldering problems from a global database. The app lets you filter by grade, climb type and angle, giving you full control over your workout. Once you have selected a session in the app, the holds on the wall will light up. The starting holds are marked in green, while the finishing holds are red. Between the starting and finishing holds, you will need to use the designated holds for your hands and feet, respectively.