Try Issue Templates without installing.
Click through the actual product in your browser. Build a template, add variables, launch a ticket. No Jira instance needed.
Template creation
Save any existing Jira issue as a template, then mark the fields that change as variables. The structure, sub-tasks and links are captured once. See creating issue templates.
Creating issues from a template
Pick a template from the issue menu, the dashboard gadget or the create-issue screen, fill the variables, and the ticket (with every sub-task) is created. See creating issues from templates.
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