Wth can't I add a helper to a existing device?

Me to, as simple example:

I want to be able to add several templates and helper sensors to my plant device such as a PH entity “an input-number helper”, then us a threshold helper for the new PH entity.

I am currently building a custom integration that will allow the user to modify devices in the following ways:

  • Change device attributes
  • (Re-)Assign any entity to any device
  • Create new devices
  • Merge two devices

Changing attributes and assigning entities already works, however the integration is currently under development, lacking documentation and should be treated as unstable and experimental.

If you are still interested in these features, Maybe you’d like to check out the repository and follow the development: GitHub - EuleMitKeule/device-tools: Device tools integration for Home Assistant.

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Seems like something I’ll have to look into this weekend!

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