How to make a mqtt (switch.altherma) visible for Home Assistant under Automations & Scenes?

Dear all,
I use project ESPAltherma (with a heat pump) and connect it to home assistant. I asked this question on that forum, but don’t get any answer. Maybe can someone here helps me?

On ESPAltherma there is a actor (call switch.altherma). Over this bit, I can turn on and off my heat pump. I can add switch.altherma to my lovelace, to my picture element to control it manually:

But I can’t see and use switch.altherma under automations & scenes. I guess that it has problem with unique ID:
“This entity (‘switch.altherma’) does not have a unique ID, therefore its settings cannot be managed from the UI. See the documentation for more detail.”

How can I make it visible and use under automations & scenes?

Thank your very much.

HI.
I’ve got same problem. Can anybody help?