You can change the default visibility style for C/C++ stereotypes that appear when you create class diagrams.
Parent topic: Customizing C/C++ UML visual development default settings
Related concepts
Visibility
Related tasks
Setting the default to show parent names
Changing the default for showing attribute and operation compartments
Changing the default visibility style for attributes and operations
Changing the default for extracting C/C++ visualization elements
Changing the default for C/C++ visualization related elements