My impression is that there is a great deal of flexibility available, both with the HomeKit app, and when using Hue's own app. But I have never taken the time to experiment with either, or learn how to make full use of the controls and options available.
Do you have a Hue Bridge, or are you using the (simpler) Hue app, or HomeKit app? You may need to have a Hue Bridge to accomplish what you desire.
The Hue website FAQs have some topics that might be helpful to you:
- How do I set one light in a room to a specific color and/or brightness?
- Can I assign one light to multiple Rooms?
They also have Facebook and other social network channels that might give you the opportunity to ask questions or enter into a discussion with others who are Hue experts.
Are you looking for support relating your Philips Hue products or Apps? Here you can find answers to the most frequently asked questions.
www.philips-hue.com