SPLITTING A MODEL INTO MULTIPLE FILES

• 1. Put different parts into different worksets.

  2. Isolate a workset in a view.

  3. Select everything and turn into a group.

  4. Convert group to a linked revit file.

  5. Repeat.

http://blog.hagerman.com/2013/10/23/revit-model-management-workset-management-and-large-model-split/#%21