public void ApplyParameterToAllElements(SharedParameterDefinition co2EParam)
{
var transaction = new Transaction(_activeUIDocument, "ApplyParameterToAllBuiltInCategories");
transaction.Start();
var definition = OpenDefinition(co2EParam.ParameterName, co2EParam.ParameterType,
OpenGroup(co2EParam.GroupName,
OpenSharedParamFile(co2EParam.SharedParametersFilename)));
AttachCategoryToAllBuildInCategories(definition);
transaction.Commit();
}