Lookups are still not available as the bound parameters

No, problem. I'm not that familiar with energy efficiency ratings so every suggestion is more than welcome 😉. I prefer Github issues for feature suggestions so I can have them in one place.

You can check the control I created at  https://github.com/DynamicsNinja/PCF-Energy-Efficiency-Rating-Control

Feel free to say if it's what you expected or suggest an improvement.

I plan to do it as soon as they enable Lookup bidings.