TellStick entities read-only

I’m trying to get my TellStick entities to work as I expect in Hassio. I’ve been using Hassbian for a few years, but wanted to try out Hass.io.
I have the TellStick hass.io add-on installed and have devices configured, like this:

devices:
  - id: 9
    name: Dinner Light
    protocol: comen
    model: selflearning-switch
    house: '1434'
    unit: '1'

They show up on the Dashboard, but in the wrong area (I can control them though). The area they are added to is “Switch”, and when I try to edit a TellStick entity I get “This entity does not have a unique ID, therefore its settings cannot be managed from the UI.” and they are read-only.

Is it possible to modify these entities somehow, like from configuration.yaml so I can add them to the correct area?

Hi! Have you had any success solving this? I have the exact same issue and cannot find any information to help me solve it myself. I cannot use my Nexa outlets in automation which is a major bummer. :frowning:

Any help is much appreciated!