To begin:
Go to the 'Create Your System' part of the Genius website and answer the first 3 questions about your current heating system (such as whether you have a hot water tank).
For the wet underfloor heating:
Add one zone of 'Wet Underfloor' per room you are going to control.
When you are asked whether this is for a JK system, select 'Yes (JK)'. This will add the first Underfloor Wiring Centre to your order.
For each zone, select whether you want a Room Sensor or Room Thermostat to measure the temperature.
During the installation, JK do not normally install a control cable from the manifold to the boiler. Unless you have been told otherwise, you will need to add a 'Group' zone for your underfloor heating so we can call on the boiler (or relevant heat source).
For radiators you are controlling with the Genius system:
See this link: https://docs.geniushub.co.uk/x/5AIK