Which node to use?

Hi,

I have a list of elements “floor, wall, columns” and density for each type. The density will be as input which can varies each time (say using slide integer).

I would like to create a node whereby the output is the list of density of each element accordingly. Which node should i use?

https://dictionary.dynamobim.com/#/Revit/Elements/Element/Action/GetParameterValueByName