Assembly Pattern in 3DEX R2020x new Reference?

I have a question about the Assembly Pattern in 3DEX R2020x. Is it possible to create new references for the components placed in the Assembly? 

In my case, I’m creating a wall composed of panels products that are instantiated by  using an Assembly Pattern. When I want to make changes (such as creating an opening) in one of the panels, this alteration is propagated to all instances created by the Assembly Pattern. To prevent this, it would be helpful if new references could be generated within the Assembly Pattern. This way, the modification would only affect the specific panel product and not all instances in the Assembly Pattern.

Feel free to reach out if you have any further questions!