I am a very New User. While trying to figure out how to make one of my devices work, I came across posting showing that I needed to edit configuration.yaml.
Then more searching to find that I needed the “File Editor” add-on. Then I found generally vague comments on problems getting it, the few that give info - were WAY out of date.
This is the current set of steps needed:
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Settings → Add-ons
If you don’t have any installed yet, the “Add-On Store” opens automatically. If you DO have some installed, you need to press the “Add-On Store” button at the lower right. -
Select the “File Editor” from the “Official Add-ons” group and install it.
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NOW, when you use “Settings → Add-ons”, the “File Editor” will be there. Click on it.
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A page of info ABOUT the “File Editor” is displayed. You will need to click on the “Start” link at the bottom of the first panel.
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Once it finishes starting, click on the “Open web UI” button to bring it up.
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Click on the folder icon at the top left, to select a file to edit. (ex: configuration.yaml.)