Use the Attribute Set page to select the attribute set or sets that contain attributes the STS can provide to a relying party. An attribute set must be created before you can select it.
When creating an attribute set for the STS, you need to know which protocol you are going to use for the attribute set and select the attributes and namespace appropriate for the protocol.
Click Devices > Identity Servers > Edit > WS Federation > STS Attribute Sets.
To select a set, move the set from Available attribute sets to Attribute sets.
WS Federation: No default attribute is set for WS Federation. For information about creating a set, see Configuring the Attributes Obtained at Authentication and Configuring the Attributes Sent with Authentication.
Click OK and update Identity Server.