Creates shared parameters for the selected category in the project. The Add Shared Parameters function allows adding multiple shared parameters at one go.
Select element categories in the current Revit project to which you want to add additional shared parameters.
In the new dialogue box, click File to select a shared parameter file.
A table of the shared parameters will open. To add a new shared parameter, it has to be marked as Selected in the last column. The rows of selected parameters will be displayed in green. By default, the new parameter will be added as a 'Type' parameter, and the user can select it to be an 'Instance' in the table. The parameter group must be chosen as well.
After clicking OK, the result can be found under Manage -> Project Parameters.