I have been struggling with this.
I have a list with IfcGUID values and another list with string values belonging to each of IfcGUID values.
Now I want to find all the related elements in my Revit model, that corresponds to these IfcGUID values and then set their parameter (which I created as CCS_ProductId) to the value in the list with string values. I hope this makes sense. So basically the question is: Is it possible to find all elements in my Revit model that corresponds to a parameter value (in my case IfcGUID)?