I was able to use MPH (us-east.equihash-hub.miningpoolhub.com:17023) Equihash switching port and can confirm mining for ZCL, ZEN, ZEC using the switching port.  I was able to mine BTG by adjusting the hub workers job from Ethhash to BTG.  It does not look like BTG is enabled as part of the switching port maybe because the web page indicates the exchanges for BTG are off line.