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# Select several datasets and act on them at once

> Tick datasets, Views and folders in Mammoth's Data Library by click, range, box or keyboard, then combine, move, download or trash them in one action.
>
> Applies to: Where: Data › Datasets

Tick two or more rows on the **Datasets** tab under **Data** in the left sidebar, and the side panel becomes a selection panel with actions for all of them. Anyone with access to the project can select; with view-only access the selection panel says "You have view-only access to this workspace, so these actions are unavailable."

## Select datasets, Views and folders

| To | Do this |
| --- | --- |
| Open an item's panel | Click the row. A dataset or View opens [the dataset panel](https://mammoth.io/docs/learn/organise/dataset-panel/); a folder opens its folder panel. |
| Open an item | Double-click it. A folder opens; a dataset or View opens in the data editor. |
| Tick one row | Click its checkbox, or Ctrl-click (Cmd-click on Mac) the row. |
| Tick a range | Tick one row, then Shift-click another. The range is added to what is already ticked. |
| Draw a box | Press on blank space and drag across rows. The box replaces the current selection. |
| Tick everything | Click the header checkbox (**Select all**). Click it again to **Clear selection**. |

From the keyboard, the arrow keys move between rows, Shift plus an arrow extends the selection, Space ticks the focused row, Enter opens its panel, and Shift+F10 (or the Menu key) opens its menu.

## Act on several datasets at once

The selection panel is titled, for example, "3 items selected", and groups the selection under **Datasets**, **Views**, **Folders** and **Raw files**. Click the cross on a line to **Remove from selection**, or close the panel to clear it.

| Action | What it does | When it is unavailable |
| --- | --- | --- |
| **Combine** | Puts the rows of the ticked datasets together. See [Combine datasets](https://mammoth.io/docs/learn/organise/combine-datasets/). | "Only datasets can be combined." Also blocked while a dataset is not ready. |
| **Move to** | Opens the **Move to…** dialog to move everything into one folder. See [Move datasets and folders](https://mammoth.io/docs/learn/organise/copy-move-delete/). | The selection holds a View, which moves only with its dataset. |
| **Download** | Downloads the ticked datasets as one file. See [Download datasets as CSV or Excel](https://mammoth.io/docs/learn/organise/download-datasets/). | "Raw files have no rows to download yet." |
| **Move to trash** | Moves the items to Trash. For a folder, its contents go and the emptied folder is removed. | The label becomes **Delete** when some items can't go to Trash, with the warning "2 items cannot go to Trash and would be deleted for good." |

Every action waits while an item is still processing, for example "“Sales” is still processing."

## Troubleshooting

| Symptom | Cause | Fix |
| --- | --- | --- |
| **Combine** says "Only datasets can be combined." | The selection holds a folder, View or raw file. | Untick everything that is not a dataset. |
| **Move to** is unavailable | The selection holds a View. | Untick the View, or move its dataset. |
| An action waits with "“Sales” is still processing." | An item in the selection is still processing. | Wait until processing finishes. |

## Related

- [Find your way around the Data Library](https://mammoth.io/docs/learn/organise/data-library/): the list you select from.
- [Combine datasets](https://mammoth.io/docs/learn/organise/combine-datasets/): put the rows of ticked datasets together.
- [Download datasets as CSV or Excel](https://mammoth.io/docs/learn/organise/download-datasets/): formats and limits.
- [Delete a dataset, View, folder or dashboard](https://mammoth.io/docs/learn/organise/delete-to-trash/): what goes to Trash with them.

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Source: https://mammoth.io/docs/learn/organise/bulk-actions.md · Updated: 2026-11-08