Homekit pairing code for Home Assitant

I cannot see that anyone ever replied to this post from 2019. The documentation says the pairing code should be under the Controller Settings but it is not there on my Android App version 4.6.2. My firmware is iro3-firmware-hk-5 635.
Is this only available when using the Apple version of the App? If so, is there another way to get it?
Thanks
Brian