Use two Nuki simultaneously at one door?

Hi There!
I would like to upgrade my security without a loss of comfort.
That means, that I want to add a horizontal lock bar to my existing door.
I would like to use another Nuki for this lock bar and use the primary and the new one simultaneously- every time the primary gets locked the other one locks as well. Every time I open the first one the second one should open as well.
Before I buy a second Nuki, I would like to know if that works (or not).
Did someone try the same already and can I bundle two Nukis?