The Document Settings window brings together document-specific settings and preferences, like Assistants or missing fonts, to help you manage your document from a single place.
To access the Document Settings window from any document head to File > Document Settings… or hit ⌘⇧,. From there you can toggle between Canvas, Fonts and Assistants settings for that specific document.
The Document Settings window for a specific document in the Mac app (v91 August 2022)