This feature allows you to enable the openid scope. Using openid scope, the Server will use OpenID Connect 1.0 flow if configured so.
When using this flow, the server will return an ID Token along with the Access Token from the Token Endpoint.
This ID Token is a JWT which contains the information about the user. The client is obliged to verify the JWT at its own accord. You can refer the JWT Support section to find more information on verifying the said JWT.
Navigate to the Advanced Settings tab.
Under the OpenID Connect section, you can find the toggle to enable/disable the OpenID Connect support.