Set Sheet Office Address (Generic Annotation)

Hi All,

 

Due to the amount of parameters now required on drawing sheets these days, I am trying to create a routine which can setup sheets quickly. Generally I have been fine with creating the routine for all the text parameters, I am struggling to work out which nodes to use to set the office address.

Currently the office address is Instance Parameter Generic Annotation on the title block which is selected within Revit from the drop down menu. Is there a way of setting this to all sheets using Dynamo?