Entities missing from Entity Registry?

Configuration
1

Why are some entities missing from the entity registry? I was hoping to use it to customize names of my sensors instead of using the customize.yaml file. Or have I misunderstood the purpose of the ER?

The entries that are missing seemt to be all mysensors and tellstick entities, does the platform need to support ER?

2

Only entities of integrations that support unique names are entered into the entity registry. as you’ve seen not all do.