@-mentions: referencing your elements

When you’re chatting with Popp, type @ to mention an element — a character, set, prop, voice, soundtrack, or sound effect. The agent will use it in whatever it’s about to do.

How it works

1. In the chat input, type @.
2. A dropdown opens, grouped by element type: Characters, Sets, Soundtracks, Props.
3. Filter by typing — @mil will match Milo.
4. Click an element (or press Enter) to insert it as @Milo.
5. The mention turns into a coloured chip — green for global elements, yellow for local ones.

You can mention as many as you like in one message:

Open with @Luna walking into @MorningPatio, holding @LatteArtCup. Score it with @UpbeatMorning.

What gets mentioned vs what gets generated

If you mention an element, Popp will use it. If you don’t mention anything, Popp will either:

• Reuse a sensible existing element (e.g. an existing character if the script calls for the same one again), or
• Create a new local element for that movie, on the fly.

Either way, you can see exactly what the agent created in the right-hand panel of the studio while the movie is being produced — characters, sets, props, music, all listed.

Local vs global mentions

In the dropdown:

• Global elements (green) live in your personal library across all your movies. You created them once and reuse them everywhere.
• Local elements (yellow) belong only to the current movie.

See Local vs Global elements for the difference, and how to make a local element global so you can reuse it.

Useful prompts that use mentions

• “Tell me more about @Milo.” — Popp opens the element so you can review or edit it.
• “Replace @Luna with a younger character with the same vibe.” — Popp creates a new character based on the existing one.
• “Use @Milo’s voice for the narration but keep @Luna as the on-screen host.” — Popp swaps voice/visual roles.
• “Make this episode at @MorningPatio instead of the studio.” — Popp re-shoots the relevant shots in your existing set.