How to configure zwaveJS2mqtt as secondary controller

I am trying to configure my Silicon Labs 700 Series-based Controller ZST10-700 as a secondary controller on my zwave network using zwaveJS2mqtt. According to the manufacturer: The S2 USB Stick acts as an extension to your smart home software adding Z-Wave Plus communication to the network. It can act as the primary or secondary controller and will perform many functions in either role. This apparently requires sending SerialAPI Functions via zwaveJS2mqtt. The functions may include SUPPORT_ZW_SET_LEARN_MODE
SUPPORT_ZW_SET_LEARN_NODE_STATE
Can someone please help this complete newbie? Thanks

zwavejs2mqtt (zwave-js) does not support secondary controllers at this time.