# ModifyMetaData

> Pass-through (metadata edits kept for .nk).

| Node | ModifyMetaData |
|---|---|
| Menu | Other › ModifyMetaData |
| **Names in each format** | |
| .oink comp (JSON) | `"type": "OC_N_modifymetadata"` |
| .nk script | `ModifyMetaData` ([how .nk import works](/docs/nuke-users/nk-import)) |
| Python | `nuke.createNode("ModifyMetaData")` |
| Assistant (MCP) | `create_node(type="ModifyMetaData")` |
| Tab search | `modifymetadata`, or its initials `mmd` |

![ModifyMetaData properties](/shots/nodes/modifymetadata@2x.webp)

## Inputs and outputs

| Port | Name | Type |
|---|---|---|
| input 0 | Image | image |
| output 0 | Image | image |

## Knobs

Knobs from the node definition (this node has no panel layout in the app yet).

| Knob | Label | Type | Default | Range / values | .nk knob | Description |
|---|---|---|---|---|---|---|
| `gl_color` | Viewer Controls Color | float ×3 | `0, 0, 0` | 0 to 1 |  |  |
| `postage_stamp_frame` | Static Frame | int | `1` | -2147483648 to 2147483647 |  |  |
| `lifetimeStart` | Lifetime Start | int | `0` | -2147483648 to 2147483647 |  |  |
| `lifetimeEnd` | Lifetime End | int | `100` | -2147483648 to 2147483647 |  |  |
| `useLifetime` | Use Lifetime | boolean | `false` |  |  |  |
| `cached` | Cached | boolean | `false` |  |  |  |
| `bookmark` | Bookmark | boolean | `false` |  |  |  |
| `dope_sheet` | Dope Sheet | boolean | `false` |  |  |  |
| `clone_group` | Clone Group | string |  |  |  |  |
| `link_source` | Link Source | string |  |  |  |  |
| `link_overrides` | Link Overrides | string |  |  |  |  |
| `split_views` | Split Views | string |  |  |  |  |


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Sources: opencomp_core/nodes/utility/metadata.py, opencomp_electron/src/components/properties/knobSchema.ts, opencomp_core/nk/mapping.py