Get calculated Areas to Revit (Schedule)

Hello everyone,

in my Skript I have Surfaces and I want to get the Area of the Surfaces anyhow to show the user in Revit. My Idea was to create a DirectShape and get the Parameters or write a Parameter to the DirectShape to get it shown in the Shedules in Revit.

But non of the ideas works. The DirectShape just appears empty in a schedule and to write a Parameter to the created DirectShape also didnt work.

Maybe you have better Ideas to show in REVIT the calculated Areas?

Please write me if I should explain it better.