Use this to work simultaneously with other users on the same project.
Each member of a project team has access to a master model and can check-out the elements on which they need to work.
In addition, users working on the same project get real-time notifications in order to identify which parts of the model other members are working on. Areas of the model that have been checked-out by other members are always available in read-only mode. When the work is completed, users can publish their work back to the master model, and thus making it accessible to the other members.
Advance Steel provides a complete range of tools, which are located on the ribbon, Extended Modeling tab > Multi User panel: