I have used MB Builder to create some Settings Pages and Relationships. I can export these to JSON, and import them with the UI on another site. Is there a way to call whatever does the Import button from code? I know previous answers have said it's not supported but that was a few years ago, so I'm hoping maybe this has changed. (I'm not worried about the custom field groups because they can sync to json, which makes them easy to move to another site without manual UI intervention.)
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