If we’re trying to make settings more user friendly we should also take a long hard look at the magic “default” listen address that is completely inscrutable.
We could divide things into sections, maybe.
TCP Connections:
[X] Outgoing connections
[X] Incoming listen addresses: [:22000 ]
[X] Attempt NAT (UPnP/PMP) Port Mappings
...
KCP Connections:
[X] Outgoing connections
[X] Incoming listen addresses: [:220whatever]
[X] Use STUN Port Detection
...
Relay connections:
[X] Outgoing connections
[X] Listen on public relays
[ ] Listen on custom relays: [ ]
...
This would make it easier to, for example, not listen on or announce relays and KCP, but still use it for outgoing connections for others who do, and so on. Or make devices that don’t listen on anything but only connect outwards, or vice versa.