Custom Settings for response_type

Apologies for the slow reply, I don’t often check the messages here, most support happens on github https://github.com/oidc-wp/openid-connect-generic/issues

Atm, the only way to do this is to use a WP filter in php. Here’s an untested example:

add_filter( 'openid-connect-generic-auth-url', function( $url ) { 
    return str_replace('response_type=code', 'response_type=code token', $url);
} );

That space between code and token might need to be %20, I’m not sure without testing.