Create new parameters and add formulas to existing ones for all in Category

Hello,

 

I was wondering on how could I use a Dynamo script to create new parameters and add formulas to existing parameters for all elements in a particular Category.

The intention here is to create a Custom Fire Rating parameter such as the one in the image to apply to all Doors in a project. See image.

FR Door parameters

 

 

 

 

Many thanks.

Joaquim