> ## 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.

# An overview of element properties

> Element properties in the Properties dialog box cover general settings, geometry, search areas, relations, advanced constraints, and element fields.

Properties of elements are specified in the **Properties** dialog box of the element or in the [Properties](/flexi-capture/fls/dif/properties-window) pane. To open the **Properties** dialog box, right-click an element and click **Properties** on the shortcut menu. After the FlexiLayout has been applied, you can also open the properties dialog box by double-clicking an element in the hypotheses tree.

All properties of an element other than its name and comment serve to describe the object that needs to be found (the object represented by the element), that is, they describe its properties and search area.

## General properties

These properties do not depend on the type of element and are specified on the **General** tab.

| Property                            | Description                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           |
| ----------------------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| **Name**                            | The name of an element. The name may contain letters (Roman characters, Roman characters with diacritics, Cyrillic characters), digits, and underscores. It must start with a letter or an underscore and must not contain spaces or any of the following special symbols: `.`, `,`, `:`, `-`, `\`, `/`. The name may not coincide with any of the [reserved words](/flexi-capture/fls/language/r-keywords) or FlexiLayout language [predefined types](/flexi-capture/fls/language/predefined-types). |
| **Full name**                       | The full name of the element. It consists of the name of the FlexiLayout to which the element belongs and the name of the element itself.                                                                                                                                                                                                                                                                                                                                                             |
| **Comment**                         | A comment or description of an element provided by the user.                                                                                                                                                                                                                                                                                                                                                                                                                                          |
| **Search Control**                  | Specifies whether the element is required, optional, or prohibited. For more information, see [Required, optional, and prohibited elements](/flexi-capture/fls/template/elements-optional).                                                                                                                                                                                                                                                                                                           |
| **Null hypothesis quality**         | The quality of the null hypothesis (this property is available if **Optional element** is selected in the **Search Control** section). The default value is 0.97.                                                                                                                                                                                                                                                                                                                                     |
| **Do not find element if**          | Specifies a condition that, when satisfied, prevents the program from looking for the element. The condition is based on whether or not the reference element was detected. If you specify more than one condition, the **Do not find element if** command will only work if all of the conditions are satisfied.                                                                                                                                                                                     |
| **Number of surviving hypotheses**  | Limits the number of hypotheses which the program may use when looking for the subsequent element. By default, this parameter is set to 5 for simple elements, and to 1 for **Group** elements.                                                                                                                                                                                                                                                                                                       |
| **Min number of found subelements** | The minimum number of detected subelements to consider the element detected. This property is available only for compound elements (that is, **Group**, **Header**, **Footer**, **Repeating Group**, and **Line of Elements**).                                                                                                                                                                                                                                                                       |

## Geometrical properties

These properties describe the geometrical features of an object. They are specified on the tab which names the type of the element. Each type of element has its own set of geometrical properties. For details, see the section where the corresponding element is described.

## Search area properties

These properties describe the search area. They are specified on the [Search Constraints](/flexi-capture/fls/template/basic-constraints) tab. For the **Currency**, **Date**, **Phone**, **Character String**, **Static Text**, and **Paragraph** elements, vertical text recognition is additionally available.

## Relative search area properties

These properties define the search area of an object relative to other elements. They are independent of the element type and are specified on the [Relations](/flexi-capture/fls/template/relations) tab.

## Additional search constraints

These properties are specified on the **Advanced** tab and are checked during and after the search.

## Element fields

An **element field** is a typed variable that belongs to an element. Element fields are defined on the **Advanced** tab. For more information, see [User-defined properties](/flexi-capture/fls/language/element-fields).

## Copy properties between elements

You can open several properties dialog boxes of elements at a time. This makes it possible to copy the properties of one element to another, but only properties that are inherent to the target element (so you cannot, for example, copy the **Max width** property to a **Static Text** element). You can also copy the value of an object's property from the **Properties** dialog box and paste this value to the properties dialog box of an element.

## Related topics

* [Required, optional, and prohibited elements](/flexi-capture/fls/template/elements-optional)
* [Search area](/flexi-capture/fls/template/search-constraints)
* [Additional search constraints](/flexi-capture/fls/template/advanced-constraints)
