A few questions about hidden networks scanning and wps pin connection

Does it support string wps pin connection? Just like the null pin.

How do i show hidden networks ssids while scanning ? WiFi.scanNetworks(async, show_hidden) shows the networks with with just the bssid and doesn't do anything to the hidden ssid .... is there a way to do it ?

Can it do WPS_TYPE_PIN but from the esp side without the need to enter anything on the router ? Just like a normal wps pin connect app on Android

Have anyone tried or came across answers of these questions?