# Give the video a smart, editable visual layer

A video can tell the story while an attached overlay carries the exact detail: a product name, an approved offer, a brand treatment or a call to action. Engage's scene-overlay workflow keeps that artwork editable instead of making every change a new piece of generated footage.

## Story underneath. Useful detail on top.

Think of a product scene with three coordinated layers:

| Layer | Its job | Example |
|  --- | --- | --- |
| Scene media | Show the story and product context | A product in use |
| Overlay artwork | Carry precise, designed information | Product cutout, label, supplied price and CTA text |
| Mapped values | Adapt selected content to a reviewed sample | The approved product name and offer for that audience |


The agent or Studio authors scene-attached artwork. The saved overlay document preserves its scene identities and sample/default values so the intended attachment can be inspected and revised.

```mermaid
flowchart TD
    Scene[Saved storyboard scene] --> Artwork[Editable overlay artwork]
    Values[Selected sample and default values] --> Artwork
    Artwork --> Inspect[Inspect attachment and layout]
    Inspect --> Preview[Assembled live preview]
    Preview --> Export[Verify the exported composition]
```

## What makes an overlay useful

- **Product detail:** connect the audience's selected product to a recognizable product card.
- **Brand consistency:** use approved logos, typography and imagery across variations.
- **Precise messaging:** keep supplied offer text and important terms in an editable artwork layer.
- **Localization:** review text length, reading direction and hierarchy for each language.
- **Iteration:** revise the artwork and inspect the affected preview instead of assuming the previous version still represents it.


For product selection and explicit audience mappings, start with [product catalogs](/engage/product-catalogs). For the creative sequence, see [agentic workflows](/engage/agentic-workflows).

## Author, attach, inspect

In a workspace exposing the overlay tools:

1. Read the current journey and selected storyboard.
2. Use `journey_overlays_save` with the supported editable artwork contract and intended scene identities.
3. Read the saved document with `journey_overlays_get`; inspect the resolved sample/default values.
4. Assemble the supported preview using the current artifacts.
5. Review placement, typography, contrast, product accuracy and timing in the actual output.


Supported artwork uses an explicit editable scene-graphics contract. Use the tool's current schema for artboard dimensions, text, images and layout; do not substitute an arbitrary HTML widget or assume any pasted graphic becomes a supported overlay.

## Artwork that stays editable

The implemented artwork contract supports text, image and geometric layers, with positioning, sizing, opacity and timing. Declared text bindings connect selected values to the artwork. Supported entrance/exit and stagger controls give those layers motion, while text fitting and left-to-right/right-to-left layout support localized compositions.

Use bundled typography and supported embedded image assets. Keep scene identities and declared bindings intact when making a targeted edit, and inspect the current result after changing a shared value. The overlay contract is a bounded graphics format, not arbitrary executable code.

## Keep three output behaviors separate

**Editable artwork** is the source that can be revised. **A live preview** shows how the current composition behaves. **An exported MP4** is a rendered video artifact. Inspect each output you intend to use.

A CTA can be visual text in a video. Click behavior belongs to a supported player, page or delivery surface; a CTA painted into an MP4 is not automatically an interactive link. Overlay attachment also does not by itself establish click tracking, alpha-video export or placement certification.

## A review prompt for your assistant

> Attach a restrained product card to the final scene using the supplied product name and approved offer. Keep it clear of subtitles and important action. Use our approved assets and show me the overlay with the selected audience sample. Preserve the product identity and verify the final composition before export.


This prompt describes the desired result. The assistant should inspect the available artwork tools, saved scene identities and actual preview before claiming the overlay is applied correctly.