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

# Measure parameters

> Reference for all measure YAML parameters in Omni, including aggregate type, SQL, format, filters, drill fields, and visibility.

| Parameter                                                                         | Description                                                                                              |
| --------------------------------------------------------------------------------- | -------------------------------------------------------------------------------------------------------- |
| [aggregate\_type](/modeling/measures/parameters/aggregate-type)                   | Defines the aggregation method for an underlying dimension.                                              |
| [ai\_context](/modeling/measures/parameters/ai-context)                           | Free text that can provide context about a measure to the Omni Agent.                                    |
| [all\_values](/modeling/measures/parameters/all-values)                           | Provides the complete list of possible values to the Omni Agent for measures with a fixed set of values. |
| [aliases](/modeling/measures/parameters/aliases)                                  | Maps old field names to updated field names to preserve content.                                         |
| [colors](/modeling/measures/parameters/colors)                                    | Maps a color to the measure when it's used as a series in a visualization.                               |
| [custom\_primary\_key\_sql](/modeling/measures/parameters/custom-primary-key-sql) | Defines a custom aggregation level for deduplication.                                                    |
| [description](/modeling/measures/parameters/description)                          | Provides metadata about the measure, made available in the workbook UI.                                  |
| [display\_order](/modeling/measures/parameters/display-order)                     | Overrides the sort order for the field picker within the field's grouping.                               |
| [drill\_fields](/modeling/measures/parameters/drill-fields)                       | Curates the drilling behavior for a measure using an array of fields for the subsequent query.           |
| [drill\_queries](/modeling/measures/parameters/drill-queries)                     | Defines multiple drill query options with full control over the underlying query.                        |
| [filters](/modeling/measures/parameters/filters)                                  | Applies filters to a measure for filtered aggregations.                                                  |
| [format](/modeling/measures/parameters/format)                                    | Sets default or conditional formatting for numbers in Omni.                                              |
| [group\_label](/modeling/measures/parameters/group-label)                         | Nests a group of fields in the field picker for curated organization.                                    |
| [hidden](/modeling/measures/parameters/hidden)                                    | Removes the field from the UI while keeping it referenceable in the model.                               |
| [ignored](/modeling/measures/parameters/ignored)                                  | Removes the field from the UI and prevents references to the field.                                      |
| [label](/modeling/measures/parameters/label)                                      | Overrides the field name for all UI appearances of the field.                                            |
| [level\_of\_detail](/modeling/measures/parameters/level-of-detail)                | Creates a Level of Detail aggregation, controlling the granularity at which a measure is computed.       |
| [links](/modeling/measures/parameters/links)                                      | Adds external links to templated URLs in the drill menu.                                                 |
| [markdown](/modeling/measures/parameters/markdown)                                | Mustache template rendered as Markdown in data table columns.                                            |
| [required\_access\_grants](/modeling/measures/parameters/required-access-grants)  | Limits a user's ability to query a field based on assigned user attributes.                              |
| [sample\_values](/modeling/measures/parameters/sample-values)                     | Provides sample values to the Omni Agent to better understand measure magnitude and usage.               |
| [sql](/modeling/measures/parameters/sql)                                          | The core declaration of the field definition.                                                            |
| [suggest\_from\_field](/modeling/measures/parameters/suggest-from-field)          | Suggests filter values from an alternative field's distinct values.                                      |
| [suggestion\_list](/modeling/measures/parameters/suggestion-list)                 | Explicitly sets the list of filter options, bypassing the default behavior.                              |
| [synonyms](/modeling/measures/parameters/synonyms)                                | Alternative names that help the Omni Agent match user queries to the correct field.                      |
| [tags](/modeling/measures/parameters/tags)                                        | Tags for field picker search and field curation.                                                         |
| [view\_label](/modeling/measures/parameters/view-label)                           | Nests a field under a different view than its default parent view.                                       |