On the Adventure Creator downloads page there is a tool for the editor scene graph. The package installs, but it's not clear how to use it. The associated PDF "readme" that is bundled in this package is a PDF for 'Screen-space Hotspot detection' and doesn't include any information about the editor scene graph extension.
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Comments
I've just checked - thanks for the alert.
The PDF has the wrong title, but the information within is correct. It should be a list of seven-step instructions. I'll update the package with the correct title.