I had an issue when trying to add custom port (e.g. 5353) on pref.vpn.dns, inside Low Level Settings. It says: "VPN is not supported". But, when I tried on my ios device I've found that this setting worked. My question: Is it possible to implement this feature on android too?? For references, I've attached screenshots on both devices. I'm on android 7.0, AG Pro v.2.9.136 and ios 10.3.3 AG Pro v.1.3.1(107). Thank you.