You load families that contain nested components or nested and shared components into a project using the same methods as any other family. 
 When you load a family comprised of nested components or nested and shared components into a project, the following rules apply: 
- The host family, along with all nested and shared components, is loaded into the project. Each nested component is available within the Project Browser under its respective family category. 
  
- A nested family can exist within a project and be shared by more than one host family. 
  
- When loading shared families, if a version of one of the families already exists within the project, you have the option to use the version from the project or from the family you are loading. 
  
Attention: After a shared family is loaded into a project, you cannot reload an unshared version of the same family and overwrite it. You must delete the family and reload it. 
To load families with shared components into a project
- Open the project into which you want to load the family. 
- Click Insert tab Load from Library panel Load from Library panel  (Load Family). (Load Family).
- In the Load Family dialog, select the family to load, and click Open. 
- Alternative: As an alternative to steps 2-4, 
  Load a Family Using Load Autodesk Family . 
- Add instances of the family to your projects.