When having more than one user profile you can choose between these and select a default profile
The profile name that describes you profile is automatically generated based on the choices made in the profile.
Profiles in different languages
Profiles based on different departments
Shared user profiles
If you create documents on behalf of others you can subscribe to their profiles. For more information about shared user profiles click here
For more info watch this video
Note that different departments may need access to different templates. As a result, you may find that each of your profiles has access to a different set of templates.