The Document tab is no longer available in 18.1. How do I look at the folder structure and retrieve folder and document ids?
Discussion posts and replies are publicly visible
Documents, folders, and KCs are all available in the /design view. Appian added in a hierarchy view so that when you open a given folder, you can navigate the hierarchy much like you could in the old Documents tab. This documentation has some additional visuals and screenshots of how this works - docs.appian.com/.../Document_Management.html