Collaborating doesn't mean everyone will always see the exact same thing. Personal Settings and Libraries will vary for each collaborator.
Personal Settings
Some of the settings in the app such as minimizing the toolbar, opening or closing the SmartPanel, and recent color palettes are considered Personal Settings. These settings are never shared between collaborators.
Libraries
Loading a library in the SmartPanel makes it visible to only the user who loaded it, not to other collaborators.