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

# Drag and drop

> Every drag interaction in WJI, from desktop files to canvas nodes to reference slots.

Dragging is how most media moves around WJI. This page lists what you can drag, where you can drop
it, and what happens.

## Dropping onto the canvas

| Drag this                                                | Result                                       |
| -------------------------------------------------------- | -------------------------------------------- |
| An asset from anywhere (library, history, sidebar, grid) | A media node at the drop point               |
| A dataset card from the asset library                    | A dataset reference node                     |
| Image, video, or audio files from your desktop           | One media node per file                      |
| A CSV or spreadsheet file                                | A table node — multiple files stack downward |
| A Markdown or text document                              | A text node                                  |

<Note>
  If an asset has a URL but no ID yet, WJI resolves it first. If that fails you are told to add the
  image to the asset library before dragging it.
</Note>

## Alt-dragging on the canvas

Holding **Alt** changes what a drag means, and it means four different things depending on what you
grab.

| Alt-drag                              | Onto                              | Result                                     |
| ------------------------------------- | --------------------------------- | ------------------------------------------ |
| A media or text node                  | A **dataset node**                | Files it into that dataset                 |
| A media or text node                  | An **asset library dataset**      | Files it there                             |
| A media or text node                  | The **gap between library cards** | Creates a new dataset at that position     |
| A media node                          | The **director bar**              | Adds a clip, or sets the clip's main media |
| A **thumbnail inside a dataset node** | Another dataset node              | Moves the asset between datasets           |
| A **thumbnail inside a dataset node** | Empty canvas                      | Creates a media node from it               |
| **A node itself**                     | Anywhere on canvas                | Duplicates it                              |
| **A connection handle**               | Multiple nodes                    | Fans out one new node per source           |

If you drop somewhere that means nothing, WJI tells you where valid targets are rather than failing
silently.

## Moving assets between datasets

| From                        | To                                | Result                                 |
| --------------------------- | --------------------------------- | -------------------------------------- |
| A sidebar dataset thumbnail | The middle contents pane          | Moves into the current dataset         |
| A contents grid card        | A sidebar dataset card            | Moves into that dataset                |
| Any asset                   | Sidebar empty space               | Opens the new-dataset dialog           |
| Any asset or file           | A gap between asset library cards | Creates a new dataset at that position |

<Warning>
  These are **moves**, not copies. The asset is removed from its source dataset and added to the
  target, and both are saved. The sidebar reports the drag as a copy operation, but the behaviour is
  a move — use **Copy to** from the asset menu if you want it in both places.
</Warning>

Dropping an asset that is already in the target tells you so and changes nothing.

## Dropping onto reference slots

| Target                         | Accepts                                                           |
| ------------------------------ | ----------------------------------------------------------------- |
| The unified reference block    | Files or assets, sorted automatically into image, video, or audio |
| Reference image list           | Image files or image assets                                       |
| Reference video list           | Video files or video assets                                       |
| Reference audio list           | Audio files or audio assets                                       |
| First frame / last frame slots | An image file or image asset                                      |

Assets dragged from a dataset carry their dataset name and type with them, so the reference arrives
already named and already typed as character, location, and so on.

<Note>
  On the canvas, first and last frames are **not** set by dragging. They are assigned through
  connections. See [Connections and references](/infinite-canvas/connections-and-references).
</Note>

## Dropping files from your desktop

Beyond the canvas, these areas accept files directly:

* The dataset contents pane — images, video, and audio
* The asset library, which creates a new dataset from what you drop
* Every reference slot listed above

The dataset contents pane also accepts **pasted** files.

<Note>
  The idea detail page has an upload button but is not a drop target.
</Note>

## Resizing panels

The sidebar and contents panes both have a drag handle on their right edge.

| Pane     | Range      |
| -------- | ---------- |
| Sidebar  | 240–480 px |
| Contents | 300–480 px |

Widths are remembered between sessions.