Everything Adjusting Tension, Bias, and Continuity You can adjust the shape of the curve passing through a point by modifying the bias, tension, and continuity settings. You can also set preferred settings as default. How to adjust the control point preferences From the top menu, select Edit > Preferences (Windows) or Harmony Essentials > Preferences (macOS). The Preferences dialog box opens. Select the Camera tab and adjust the parameters in the Control Points section.