You should start the WiFi activity from adb
then simulate inputs:
adb shell am start -a android.intent.action.MAIN -n com.android.settings/.wifi.WifiSettings
adb shell input keyevent 20 && adb shell input keyevent 23
Here is the list of adb
inputs: #7789826
I'm not sure if those keyevents are the right one for your case, but I think it will do. It simulated a "down" to select the first checkbox, then an "enter".