Story Settings hold everything that applies to the whole story rather than to one scene.
Open Story Settings
In the Composer, click the story title at the top left. Story Settings opens. Each field saves as soon as you leave it, so there's no Save button.
What you can set
Title: the name shown in Compose and in TSS Control. Emoji aren't allowed, because TSS Play can't display them.
Description: a short note on what the story is for.
Story filters: fields your Administrator set up under Settings > Filters & Categories, to help people find stories.
Publish: Draft, Temporary or Permanent (see Publishing a story).
Set as a template: turns the story into a story template. If you're not allowed to publish, this sends a request instead. For a template, the button reads Remove from Story Templates.
Story Settings on the Stories page
On the Stories page, open a story's ⋮ menu (or right-click it) and choose Edit. This opens a shorter Story Settings window with the title, location, Base Setup, Other Setups, story filters and description. Click Save to keep your changes. You can't change the publish status or add setups here.
Setups
To add a setup to a story, use the setup switcher in the Composer (see Using one story in multiple setups).
Good to know
When you duplicate a story, its settings are copied along.