MC instances : number undefined, acting like radio buttons

Hi all and bless this forum,

The short version question would be :
I’m attaching as many instances of a MC as my xml child nodes length.
So basically never know how many of them would be on the stage.
Each MC receive actions to perform, nothing fancy and it basically works.

But what I want to do is to know when the user has clicked once on any mc so this latter gets ‘not enabled’ until another MC instance gets clicked. (so my previous MC instance gets enabled, it acts like radio buttons )

The point is I know how to do it when the total of instances is defined.
I also know the basics of a loop , but I cannot figure how to set up a “toggle” to gets this ‘radio button group behaviour’.

Thanks anyone for any good answers/ tip/hint :wink:

K