How to add shared parameter to selected families of category

DesignScript
, ,
1

Hello :slight_smile:
I would like to know if it is possible to add shared parameter not to every element of choosen category?
I have got a lot of Doors in my project and I want to add parameter just to 80-90% of them. It could be done e.g. this way:
image

Thank You in advence,
Piotr