Renaming a template

Unless you are a project administrator you can only rename templates that were created by you. Read more.

Open "Manage Templates" dialog:

or "Checklist Templates" page:

Most of the screenshots below were taken from inside Manage Templates dialog but the process is identical on Checklist Templates page.
Click "Rename" on a selected template (you can rename only your own templates, unless you are a project administrator - read more):
New dialog pops up. Enter a new name for the template and click "Rename":

Template name must be unique (it is not possible to have more than one template with a given name).
After the new name is saved the list of templates is updated:

Issue Checklist Documentation (Legacy)