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

# Checkmark group field

> Add a Checkmark group field to a Document skill, configure selection rules, and set field properties.

A Checkmark group field contains several checkmarks — typically a multiple-choice question, optionally allowing several answers to be selected at once.

<Note>
  A **Checkmark group** field is not the same as a [Group](/vantage/documentation/skill-designer/document/adding-fields/group) field that contains several Checkmark fields. A Checkmark group is a single field whose value is the set of selected checkmarks.
</Note>

## Add a Checkmark group

### Mark a region around several checkmarks

Draw a rectangle that includes several checkmarks. The new field appears in the data form with an auto-assigned name.

<Note>
  This works only for checkmarks with a square frame.
</Note>

### Add an empty field and mark its region

Click **Add Checkmark Group** in the toolbar, and then draw a rectangle that contains several checkmarks. To add checkmarks one at a time instead, click **Add Checkmark** and then click each checkmark.

<Tip>
  To rename the group or any checkmark in it, double-click the name in the data form, or click the name in **Field options**.
</Tip>

## General properties

| Property           | Description                                                                                                                     |
| :----------------- | :------------------------------------------------------------------------------------------------------------------------------ |
| **Field name**     | Unique within the skill. Cannot contain: `. , / : * ? " < > \|`. Maximum length: 90 characters.                                 |
| **Required field** | If enabled, at least one checkmark must be selected. If none are selected after extraction, the document goes to manual review. |

## Checkmark type

All checkmarks in a group must share the same type.

| Type              | When to use                                                     |
| :---------------- | :-------------------------------------------------------------- |
| **Square**        | Checkmarks in bounded square regions (for example, checkboxes). |
| **Without frame** | Checkmarks on an unbounded white region.                        |

## Allow corrections

Enable **Allow corrections** to treat fully colored-in checkmarks as unchecked — used when an operator corrects a mark by filling it in (filled-in mark = undone).

<Note>
  **Allow corrections** works only for **Square** checkmarks.
</Note>

## Selection rules

* **Allow multiple selection** — Enable to let more than one checkmark be selected at the same time.
* **Max selected allowed** — Only available when **Allow multiple selection** is enabled. Sets the maximum number of checkmarks that can be selected. If more are selected after extraction, the document goes to manual review.

## Related topics

* [Checkmark field](/vantage/documentation/skill-designer/document/adding-fields/checkmark)
* [Group field](/vantage/documentation/skill-designer/document/adding-fields/group)
* [Label documents in Skill Designer](/vantage/documentation/skill-designer/document/labeling-documents)
* [Add fields](/vantage/documentation/skill-designer/document/adding-fields/adding-fields)