Only Surge Mac supports this feature, from version 2.1.0
Some applications may not obey the system proxy settings. Using enhanced mode can make all applications handled by Surge.
Surge will setup a virtual network interface (VIF) and register as the default route. All DNS questions will get answers with a virtual IP in 198.18.0.0/15 block.
Surge VIF can only process TCP, UDP and ICMP traffic. Only enable this feature when necessary.
ICMP traffic can't be proxied. Surge VIF will return a response directly.