@ in the prompt box or a Preview Agent message to open the same reference menu in both places.
What you can reference
- Recently used: your last few references, for quick reuse.
- Characters, Locations, Props: your library by category, each showing its item count. Type after
@to search by name, or click a category to browse directly. An item with multiple variations or images shows a count; click through to pick one instead of the default. Only files saved to your project library show up here: save a Character, Location, or Prop first, then reference it by name. - Gen History: every file generated in this story. Search by description (subject, color, style), not just exact name.
- Uploads: project files outside any library category.

After you pick
The reference appears as a chip in your text. Right-click it to Replace with something else, or Remove.
The prompt box also has Click to pick, to reference directly from the canvas instead of the menu; it enforces each model’s reference limit too. Preview Agent’s chat has a simpler + attach button (Assets, Characters, Locations, Props, Upload) as a flatter alternative alongside the same
@ menu.