Dear Nigel
Thank you for your interest in our products.
This sounds like a perfect application for the CueCore.
You can program with the schedular for specific days or dates, sunset, times etc! This can work completely stand alone for on and off, timed events, of the lighting states.
You can also consider adding a B-Station into the network to manually turn on/off or select additional lighting states if required.
Within the CueCore is a simple command line interface lighting console which may prove to be enough for your programming requirements.
I am going to put you in direct contact with our UK distributor, Qeytek so that they can give you further information and advise on this.
Once more thank you and we look forward to seeing if this can be the right solution for you!
Greetings Zoë