This feature is available in Enterprise and Ultimate editions.
There are two ways to generate a new defect from a template.
When you create a defect from a template, the item inherits all the details from the template, including title.
Option 1: From the Sidebar
Option 2: From the Templates Grid
From the main menu, select Product > Input > Templates.
In the Defect Details section, select a template, and then click Generate Defect. When the defect details page opens, all of the defect information will be the same except for the defect ID.