To Retrieve a Case Study
1. In an open notebook with a case study, click Layout > Case Study.
2. At the prompt, type the name of a case study to open or type a new name and click or press ENTER. When you type a new name the ENTER menu appears.
3. Select an option for opening the case study:
Retrieve—Provides a list of case studies.
List—Opens an Information window with a list of all sketches.
Import—Provides a prompt in which to enter the name of a sketch to import.
* 
You cannot retrieve a case study with reference dimensions outside the notebook.
4. Select the case study and click Open. The case study opens.