In the next step, you will select the Philips Hue bulbs that have to follow the Ambilight.
You can select a maximum of 9 Philips Hue bulbs for Ambilight+hue. 

To select the bulbs for Ambilight+hue…

1. In the list, mark the bulbs that have to follow the Ambilight. To mark a bulb, select the bulb name and press OK. When you mark a bulb, the bulb will blink once.
2. When you’re done, select OK and press OK.