NIBE SMO 40 4.2 op. mode, add. heat only - is heating option available?

Hello Cogniscenti, I am trying to control my NIBE SMO 40 from HA using the myUplink custom integration created by jaroshek (much kudos for creating this). I have three cheap electricity periods in each 24 hours (Octopus Cosy tariff). I have a NIBE F2020-16 ASHP and a gas heater controlled by the SMO 40.
I am able to manipulate the settings in HA to trigger the gas heater to turn on during the expensive electricity periods by setting the op. mode (select.smo_40_op_mode_47137) to add. heat only and resetting the degree minutes (number.smo_40_current_value_40940) to below the threshold that triggers the gas boiler to start.
There is a subordinate setting in myUplink under add. heat only called heating, and this has an on/off slider. With this set to on the gas boiler will start when the degree minutes drop below the configured threshold. All working fine so far.
However, when I do not need the gas boiler running, and I don’t want the ASHP running during the expensive electricity phases, there are times when I would like the water pump circulating the water around the ASHP and the central heating tank to stop - it seems a waste of electricity.
I can do this via the web myUplink by toggling the heating slider under the add. heat only setting. But I cannot find this entity in HA.
Apologies for the long explanation. My question is - am I missing the binary entity in HA that switches the heating setting on and off, or does it not exist in the integration? Or is there a way I can find this out?
Thank you very much for your advice on this.