We are a company often working with external architects who provides us with a new Revit-model once a month. As an MEP-Engineer I link this model into my own MEP-Model. When designing the Airconditioning in the Building i often need to specify which Doors need an undercut for airflow. The doors are set by the Architect, but the Parameter "Undercut yes/no" is my part as an MEP-Engineer. If the Undercut is one Family and the door another Family then the following problem occures in the schedule: How to see how many type A-doors and how many type B-doors needs an undercut?. This is just one of many types of cases were some linked Family Parameters should be changeable from the host model. Imagine how the construction-engineer could change the type of steel in the walls or the Fire-Protection-expert could change the fire-protection-level of the walls. Right now the architect needs to implement a lot of this Information into his model which is really time consuming. The same goes when working with Worksharing and Central models. You can give families free for other Users to edit but not single Parameters.... Or you give everything free for other users to edit… The only Problem with this is.. how does the architect make sure that the MEP-Engineer dont touch Parameters which he shouldnt edit?, while meantime the Construction engineer adds new Elements to the Central Model, so a Ctrl+Z on the Central model would be catastrophic because work is lost then.
