Would highly appreciate, if you could give a hint, how I could achieve something like this:

You can use a preset control: https://github.com/aristath/kirki/issues/393
Docs are missing for that, I'll add them as soon as I can find some free time to do it. 👍
Omg, is there anything Kirki can't do?
You're awesome.
I just implemented a preset argument which can on for controls like radio-buttonset, radio-image and so on so posting an update in relevant tickets in case someone needs it.
Won't be documented yet, this is a soft-launch so some people can use it and as soon as we're sure it works ok we can add docs etc.
For now in my tests it appears to be working flawlessly 👍
See #1843 for details
Most helpful comment
You can use a
presetcontrol: https://github.com/aristath/kirki/issues/393Docs are missing for that, I'll add them as soon as I can find some free time to do it. 👍