Add new token to filename in templates yml

Need a new token called concept or dmp when a photoshop file is published. These are fields code, content in Task table fora shot.

https://groups.google.com/a/shotgunsoftware.com/g/shotgun-dev/c/im1vJO-ABhQ

Links above have some explanation in it but does not give full picture.

(Their is a link in the “templates-yml-key-options-use-case” link it only opens the main page.)

Please suggest how to add new tokens in templates.yml