Editing a Template

I tend to edit my templates every so often. How can I do this in DTPO? Do I need to create a new template every time I need to tweak an existing template. My template is .rtf file and does not pull information from anywhere. It simply contains a few lines of text.

One possibility is to index the template. Another one is to import the RTF file and to duplicate it every time you need a new copy instead of using Data > New from Template.