Enable non lighting devices to be recognised as lights
Have Alexa be able to recognise items like TP Link smart switches as lights by means of a toggle switch within the device lists. Currently calling the turn off all the lights command excludes the smart switches. Creating a group called all the lights seems to cause confusion for Alexa.
I have discovered that it is possible to bulk change the device type from 'switch' or 'plug' to 'light' in the Alexa App. If you navigate to Smart Home > Devices > Select a Device > Edit (top right) > Type . Within here you can change just that specific device or if you press the 'ALL PLUGS & SWITCHES' button, you can bulk change all devices or toggle select devices from a list to change to type 'Light'.