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

# WanMoveConcatTrack - ComfyUI Built-in Node Documentation

> Complete documentation for the WanMoveConcatTrack node in ComfyUI. Learn its inputs, outputs, parameters and usage.

> This documentation was AI-generated. If you find any errors or have suggestions for improvement, please feel free to contribute! [Edit on GitHub](https://github.com/Comfy-Org/embedded-docs/blob/main/comfyui_embedded_docs/docs/WanMoveConcatTrack/en.md)

The WanMoveConcatTrack node combines two sets of motion tracking data into a single, longer sequence. It works by joining the track paths and visibility masks from the input tracks along their respective dimensions. If only one track input is provided, it simply passes that data through unchanged.

## Inputs

| Parameter  | Data Type | Required | Range | Description                                                                                                   |
| ---------- | --------- | -------- | ----- | ------------------------------------------------------------------------------------------------------------- |
| `tracks_1` | TRACKS    | Yes      |       | The first set of motion tracking data to be concatenated.                                                     |
| `tracks_2` | TRACKS    | No       |       | An optional second set of motion tracking data. If not provided, `tracks_1` is passed directly to the output. |

## Outputs

| Output Name | Data Type | Description                                                                                                         |
| ----------- | --------- | ------------------------------------------------------------------------------------------------------------------- |
| `tracks`    | TRACKS    | The concatenated motion tracking data, containing the combined `track_path` and `track_visibility` from the inputs. |