In the image below, I show the basic process used to drive a Floor Area parameter into a manually added shared parameter. Obviously, this scenario is not ideal – the data link isn’t dynamic, so we have essentially created a mini-silo (that’s what I’m going to call “in-software unlinked BIM”) right inside Revit.
In any case, here is how you can quickly do it with Whitefeet tools (start at 1 and follow the arrows):
I previously posted another workaround for this – using a filtered schedule:
Tag Floor Area in Revit workaround
