How to integrate VSTA methods into CorelDRAW x8?

Hello Everyone,

I've been trying to get an integration working between VSTA and CorelDRAW for a few weeks, but I can't get anything working.

The official tutorial does not work for me, I get an error when I click on the button "To use extensions, you must first be authenticated", but I am positive I am signed in, when I click Help > Product Detail, the Welcome screen says in large text "Authenticated."

Additionally, if the tutorial did work, the new button does not show up in Tools > Customization > Commands, so if the user deletes the button from the toolbar, they can never add it back without a developer's assistance, furthermore we have no way to assign a shortcut key to the button.

Am I missing anything obvious? Is the VSTA integration actually complete, or this just a stub for some future release?

Thanks a ton for your help,

Albert