Fast Line Pro interface
How the updated Fast Line / Fast Line Pro workspace in Constructor is organized: navigation, new UI, and key screens.
When you need this
- You are used to legacy Fast Line and cannot find agents or knowledge bases.
- You need to locate Search check, chunk export, or knowledge base settings.
- An administrator plans to enable the updated interface, or to roll back to the legacy one.
Both toggles below are off by default. Until an administrator turns them on for your instance, Constructor looks exactly as it did before — this page describes what changes once they are enabled.
What changed
Single entry point — Fast Line Pro
With Fast Line Pro only enabled, the main Constructor menu item is Fast Line Pro (Ukrainian UI may show Fast Line - AI agents):
- Agents — powerful AI agents with tools.
- Chat bots — simple assistants.
- Knowledge base — documents, chunks, search parameters.
Legacy Fast Line (older module with statistics/import sections) then stays hidden; it is visible while the toggle is off.
New interface (PrimeVue)
With Fast Line PrimeVue UI enabled, Fast Line and Fast Line Pro screens use an updated interface (tables, buttons, forms, dialogs) instead of legacy Vuetify:
- agent, chat bot, and knowledge base lists;
- documents and chunks;
- Search check;
- chunk export/import (when the feature is enabled).
Search check and chunk export/import are available in both the legacy and the updated interface — they do not depend on this toggle.
Where to find things
| Task | Where in the UI |
|---|---|
| Check what retrieval finds | Knowledge base → documents → Search check |
| Bulk-edit chunk text | Knowledge base → documents → Export / Import changes |
| Configure search methods | Knowledge base → Knowledge base settings |
| Create an agent | Agents → create |
| Attach a knowledge base to an agent | Agent card → knowledge bases |
Instance settings (administrators)
Settings → Instance settings → Feature flags → Fast Line Pro:
| Toggle | Default | Effect |
|---|---|---|
| Fast Line PrimeVue UI | Off | 1 → PrimeVue interface; off → legacy UI |
| Fast Line Pro only | Off | 1 → Fast Line Pro only in menu; off → legacy Fast Line stays visible |
See Administrator hub for admin workflows.