> ## Documentation Index
> Fetch the complete documentation index at: https://docs.zerogen.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Reuse and trace an asset

> Send a generation's settings back to Generate, and follow any asset through what it was made from and what's been made from it.

ZeroGen records what every generation was made from. From the Library you can
run a generation again with its exact settings, or follow any asset, uploaded
or generated, through the work it's part of.

## Reuse a generation's settings

Select a generated asset, then choose **Reuse parameters** in its details. You
can also hover over its tile and choose the circular arrows, or use the
button in the viewer.

![The Asset details panel for a generated image, with Reuse parameters highlighted under Actions.](https://mintcdn.com/zero-gen/m4I7fPs1rAXZSMjU/images/library/reuse-details.png?fit=max\&auto=format\&n=m4I7fPs1rAXZSMjU\&q=85\&s=50f6d8e0e74eada630811d277b22e8b7)

Generate opens with the generation's model, prompt, settings and references
loaded, ready to change and run again. Nothing runs until you choose
**Generate**. See [Reuse and trace a result](https://docs.zerogen.com/generate/reuse-and-trace.md) for
what's loaded and when a generation can't be reused.

Uploads have no settings to reuse, so they don't offer **Reuse parameters**.
To use an upload in a generation, choose **Use as…** instead. See
[Use as a reference or frame](https://docs.zerogen.com/generate/frames-and-references.md#use-as-a-reference-or-frame).

## Open the reference graph

Double-click an asset to open it in the viewer, then choose **Show reference
graph**. In Generate, open a result and choose the same action. The graph
takes the place of the media and needs a window at least 768 pixels wide.

![A generated image of a man hitchhiking open in the viewer, with Show reference graph highlighted in the actions.](https://mintcdn.com/zero-gen/m4I7fPs1rAXZSMjU/images/library/show-graph.png?fit=max\&auto=format\&n=m4I7fPs1rAXZSMjU\&q=85\&s=f07f096eefbb6b380f44d40907ed6cd7)

You can open the graph for any asset. An upload has no sources, but the graph
shows what's been made from it. The graph only shows uses in the asset's own
project.

## Read the graph

![The reference graph of a hitchhiking image. A character sheet is selected: its connections are labeled Reference, and a card shows its model, size, date, prompt and settings, with View full size and Open buttons. The uploaded photos are blurred.](https://mintcdn.com/zero-gen/m4I7fPs1rAXZSMjU/images/library/graph-selected.png?fit=max\&auto=format\&n=m4I7fPs1rAXZSMjU\&q=85\&s=2816cf446b5d00d6bbb5fd594d92b5e8)

* **Each card is an asset.** What the asset was made from is on the left, one
  column per step, and what's been made from it is on the right. The asset you
  opened is marked **This asset**.
* **Hover over or select a card** to light up its connections and see how it
  was used, such as **Reference**, **Start frame**, **End frame** or
  **Keyframe**.
* **Select a card** to see its model, size, date, prompt and settings. Choose
  **View full size** to see it large without leaving the graph, or **Open** to
  move the graph to that asset. Double-clicking a card also opens it.
* **A button such as +3 more** on a card shows uses that are hidden to keep
  the graph readable.
* **Play all** plays every video in the graph at once.
* Zoom, move around and go full screen with the graph's controls, or zoom
  with your mouse or trackpad.

Choose **Back to player** or **Hide reference graph** to return to the asset.

### What the graph shows

* A deleted asset stays in the graph, marked **In Recently deleted**, and an
  asset that can't be shown is marked **Not available**.
* For a very long history, the graph says **Older sources aren't shown** or
  **Later uses aren't shown** where it stops.
* If nothing was recorded and nothing has used the asset, the graph says so.


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