The Layout Manager is an extension of the Runway Framework, so it’s only something that can be used directly with a Runway theme. Since the framework isn’t a plugin, nor the extension a plugin, it can’t be integrated with another pre-existing theme unless you converted it into a Runway theme. That’s something which can be done, but I would think it’s probably way more work than what you are wanting for your basic needs.
Sorry for the delay getting back to you. I’ve been out sick and hadn’t asked anyone else to check the forums!
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