Populate Card by Friendly Name

@Mutt wrote:

I’ve just migrated EVERY thing from one HA instance to another, adding and changing things as I went.
I use the unused entities to see what I need to do with any new entities to check that the decks are clear.
I have a ‘view’ just for hiding stuff away. I generally populate it (from the template editor) using : -

-
{% for state in states.automation -%}
{{ '        - entity: ' ~ state.entity_id }}
{{ '' }}
{%- endfor %}

Pasting the result into my yaml (same for scripts)

So inspired by a recent topic : -

I thought I’d do the same with the ‘other entities’ I want to hide, but here it becomes tricky.
The main thing they have in common is that they ALL have a friendly name Starting with "Null "
But, for other uses, they may have the word “Switch” somewhere in the friendly name. (This is just an example of something to search for).

Using the two above examples I thought I’d hack the two together and create my ‘yaml scraps’.
The brickwall I’ve hit proves to me that I don’t actually understand the syntax well enough to do that.
The question was split deliberately as the first 5 chars should be relatively easy (so much for what I thought ) and the second (‘Switch’ somewhere in) - … - I have no clue at all

Can someone explain the required syntax and see if that lights a candle somewhere in the blacked out aircraft hanger that I’m working in ? (even if it’s just a reference)

Thanks in advance

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