Just like in Revit, if you have a parameter value where you can simply edit the value in the properties pallet, Dynamo can allow you to select the element and edit the values with the Element.SetParameteByName node.
However, with instance parameters you have to click on the ‘edit type’ button, Dynamo needs you to do the same. Instead of collecting all elements in view or all elements of category and then proceeding onto the end result, you will need to go a step further and get the Element.Type first. Once you have that you can proceed.
If this isn’t clear please start a new topic as this one is already solved and weMre getting into the weeds.