To open a design option for editing
Do one of the following:
If the status bar does not display the active design option, enable this feature by clicking View tabWindows panelUser Interface drop-downStatus Bar - Design Options.
The model elements that you add now belong to the active option. For tips on using design options in various ways, see Considerations When Using Design Options.
While you are editing the design option, you can move among project views as needed. When you change to a different view, you may need to change the design option settings for the view to see the active option. (See Checking the Design Option Settings for a View.)