How to hide master templates in the new message templates UI in Visual Dialogue?

In the new Message Templates section in the user interface, we can hide master templates that are no longer needed.

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Right-click the template to be hidden and select Properties from the pop up menu.
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A deactivated master template will no longer be visible in the UI.
This is also explained in the user guide on page 99.

UPDATED:  April 10, 2017