Folder and arming tracks

Here is a scenario, I have a folder track with 4 different flutes (4 Kontakt instances). So I select the folder and in the inspector I can select either of the flutes. So far so good. If, however, I arm one of them (from the inspector) and then arm another, the first does not disarm, which is the behaviour I have if I arm the actual track.
Is there anything in prefs or is it this way for some reaqson?

Hi,

I’m sorry, there is no way, how to Enable Record of the one track exclusively by one click (+ hold down a modifier, what I would expect).