Request for space heating additional sensors

[scaleno]

I have a Daikin Altherma R Hybrid installed and I’m using your very helpful integration without the Daikin API.
It would be useful if you could add the following sensors to monitor the efficiency and the thermal performances of the heat pump:

• water outlet temperature °C
• water inlet temperature °C
• flow rate l/m
  Thanks in advance for your support

[slip83]

I'd love to see available sensors that the gateway provides... There's plenty of information there. Apart of the ones above, the gateway provides both elec consumption and heat generated. Actuators positions and more... What would we need to get them set up?
I'm happy to help provided that you guide me as I'm not a programmer.