Apps
What an app is in Liberty Next — a connector with a menu, shown in the app picker — what belongs to it (queries, dictionary scope, screens, menu, charts), how users switch between apps, and how an app is copied, moved between environments or installed ready-made.
Menus — overview
The Menus page, the flat-items-linked-by-parent model, the five leaf kinds (screen / query / endpoint / dashboard / page), and how a menu plus show_in_switcher turns a connector into an app.
Make a connector an app
A connector becomes an 'app' visible in the application picker when it has a menu attached and show_in_switcher is on. Plus how the optional home field decides the landing page.
Build the tree
The tree editor — add folders and items, drag to reorder, indent/outdent to reparent, clone, rename, find usages. Every action's exact button and behaviour.
Item types
The seven leaf kinds — screen / query / endpoint / dashboard / page / job / url — what each opens, the target field's shape, the connector rule, and when to reach for each.
Permissions and roles
The roles filter on a menu item, the underlying sql / api permission inherited from the target, how empty folders collapse, and how the menu prunes per user.
Translations and icons
Menu labels per language with the l map (l.fr, l.de…), how the language is chosen, and the icon names the Liberty Next sidebar can draw.
i18n
Languages in Liberty Next — the interface in English and French, the per-language labels (l) of dictionary entries, enum values, menu items, dialog tabs and prompts, and how the language of each request is chosen.