INCLUDE

Includes all records from a given domain

dnsconfig.js

D("example.com!external", REG_MY_PROVIDER, DnsProvider(DSP_MY_PROVIDER),
  A("test", "8.8.8.8"),
);

D("example.com!internal", REG_MY_PROVIDER, DnsProvider(DSP_MY_PROVIDER),
  INCLUDE("example.com!external"),
  A("home", "127.0.0.1"),
);