How to define Start Url for all users in a role in Sitecore

I have list of users in Sitecore tied to Active Directory. I would like to associate a default Start Url in the User Profile for particular Roles instead of setting them manually per user. I am unable to find a configuration in the Security Tools section of the Desktop nor in the configuration files. Is it possible to accomplish this? If so, how?

Solution

The answer is to create a custom profile it seems and assign a default value specifically for a text field named "StartUrl":

http://digital-learnings.blogspot.com/2015/02/customising-experience-for-sitecore-ad.html#.VXcH3UadqW4

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