Your Vertx/V10 has three Cruise Control speeds, on buttons 1, 2 and 3.
You can program these for your own walking speeds as follows:
1. Use the speed up and slow down buttons to find your desired walking speed.
2. Press and hold either button 1, 2 or 3 for three seconds. The machine will stop to show that the instruction has been received. Now release the button and the machine will restart. Your new speed is now stored.
3. To activate the new speed press button 1, 2 or 3 and release the button as normal.