LHGG LTE6 kit - I can not add wireless interface

Hi Folks
I just bought LHGG LTE6 kit and have a problem with basic configuration. I can not add wireless interface becasue require master interface. How to set up?
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Are you joking?
Or you wanted to configure the additional access point that you bought separately, because this is only one LTE external device and obviously do not have Wi-Fi?