You can close a design from the File menu:
Ø File | Close Design
In case there have been any changes to the model since you have last saved it, Maxsurf will ask you whether you wish to save the design changes.

§ Selecting yes will save the changes and close the model.
§ Selecting no will not save your changes and close the design. You will lose all changes since the last save.
§ Selecting cancel will cancel the close design command and allow you to continue working.
Continue with the Chapter 3 User Interface section on the next page.