You can customize common Additive Prep options using SpaceClaim's options window, accessible from the File menu. Think of these as startup preferences.
To change Additive Prep options:
Select SpaceClaim Options from the File menu to display the SpaceClaim Options window.
Click Additive Prep from the navigation panel on the left for general options. Click Additive Prep Machines for machine-specific options. Click Additive Prep Materials for material-specific options.
Modify the options on the page.
Click Save Changes (on Machines and Materials options pages) and then OK to save all your changes and close the window.
Additive Prep options are "sticky," in that once you have set them, they will remain that way each time you open SpaceClaim, until you change them again.