User Name claim for SharePoint 2013

[venh]

Hi,

I am trying to integrate Thinktecture IdentityServer v2.2 into my SharePoint 2013 environment by following the below link.

http://www.wictorwilen.se/using-sharepoint-2013-with-thinktecture-identityserver-2

It has claim mappings for Email, Role and Title. I want to have claim mapping for user name only. Can anyone please tell me how can I achieve that?

Also, I would like to manage my users and roles into a custom DB than the one used in the solution. Can you please guide me?