> For the complete documentation index, see [llms.txt](https://docs.fabricplan.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.fabricplan.com/documentation/readme/powertable-sheets/how-tos/adding-columns-overview/add-visual-column.md).

# Add visual column overview

Visual columns are inserted only within the powertable sheet. These are not added to the source database.

To add a visual column, select **Insert Column** > **Visual Column** and then choose the required column type to be inserted. There are six column types available:

<table><thead><tr><th width="133.33331298828125">Column type</th><th>Summary</th><th>Typical use case</th></tr></thead><tbody><tr><td><strong>Multi-select Relationship</strong></td><td><p>Multi-select column that selects values from a lookup table for each record in the primary table, based on the relationship table.</p><p>You can also select values from the displayed list, retrieved from the lookup table.</p></td><td>Assign multiple sales representatives to a product, multiple skills to an employee, or multiple tags to a task.</td></tr><tr><td><strong>Reference</strong></td><td>References and displays read-only values from another table based on matching keys.</td><td>Display a customer's region, department name, or manager name without duplicating data.</td></tr><tr><td><strong>Relation</strong></td><td>Each record provides a navigation link to related child records in another table (master-detail relationship).</td><td>Open all order records for a selected customer or view all tasks related to a project.</td></tr><tr><td><strong>Rollup</strong></td><td>Aggregates values from related records and displays a summarized result, such as a sum, count, average, minimum, or maximum value.</td><td>Show total project cost, total hours worked, or the number of open tickets for a customer.</td></tr><tr><td><strong>Button</strong></td><td>Adds an action button that opens a URL or triggers an automation.</td><td>Open a URL, launch an automation, or start a workflow.</td></tr><tr><td><strong>Attachment</strong></td><td>Stores and manages files associated with a record.</td><td>Attach contracts, invoices, images, or supporting documents.</td></tr></tbody></table>

<figure><img src="/files/QcGaG4MVmc9oqCys7JqY" alt=""><figcaption></figcaption></figure>


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