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Templates are easier than ever to clone, as they now appear in the left panel of your campaign. You can click the clone button instead of the "+" button to create a new Character of that template type.
Pretty much everything is cloned now except the name (which you provide when you clone it):
To create a new template, simply mark the "Is Template" checkbox of any page in your campaign while editing.
Templates are available for Legend and certain legacy Hero subscriptions. Pricing