I am new to Revit and I am attempting to better understand shared parameters and how they technically work. Lets say I create a shared parameter in family #1. Does the shared parameter .txt file that you created in family #1 link to family #2, or is it just a place for Revit to store data until that data is copied into the family #2? To help understand my question a little better, if I delete the .txt file, will my family fail or will it work since that data has already been copied into family #2?