Listen to a property of an user-defined handle class

Hi,

In an user-defined handle class, I have attached a listener to a property, which I've defined in a property block using 'Setobservable'.

To create the listener I used the function addlistener. And I've defined the listener itself to be a property of my handle class.

Now I would like to create many objects of my class (from another handle class).

Is it possible to 'hear' that property from my other handle class so that I don't have as many listeners as I do have objects? If yes, how can this be acheived?

Thank you for your help and support!