> ## 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.

# Sample 4. Step 7: Table column names, TableHeader group

> Prepare for table detection by creating a TableHeader group of Static Text elements that find the invoice table column names on the first page.

Use a Table element to search for the Invoice Table field. However, some preparations have to be done: the column names must be detected first. In this sample, auxiliary elements are used to search for column names.

Therefore, before you start searching for the fields, you need to create a number of elements.

To describe the column names, create a TableHeader group, which will include the descriptions of all the column names. Also, limit the search area to the first page.

To create a TableHeader element:

1. In the tree of elements, create an element of type Group and name it **TableHeader**.
2. Click the Search Constraints tab and specify the search area for the element:
   * Select the Absolute search area constraints option.
   * In the Pages field, select Range from the drop-down list.
   * In the Range field, type 1.
   * In the Region field, keep the default value.
   * Click the Add... button.

Use Static Text elements to search for the column names.

In the TableHeader group, create the following elements:

1. **kwDesignation** element. For detailed instructions, see [Step 7.1](/flexi-capture/fls/tutorial4/4step7-1).
2. **ExtraQtyTag** element. For detailed instructions, see [Step 7.2](/flexi-capture/fls/tutorial4/4step7-2).
3. **kwQuantity** element. For detailed instructions, see [Step 7.3](/flexi-capture/fls/tutorial4/4step7-3).
4. **kwUnitPrice** element. For detailed instructions, see [Step 7.4](/flexi-capture/fls/tutorial4/4step7-4).
5. **kwTotal** element. For detailed instructions, see [Step 7.5](/flexi-capture/fls/tutorial4/4step7-5).
6. **kwReference** element. For detailed instructions, see [Step 7.6](/flexi-capture/fls/tutorial4/4step7-6).
7. **kwSales** element. For detailed instructions, see [Step 7.7](/flexi-capture/fls/tutorial4/4step7-7).
8. **kwUnit** element. For detailed instructions, see [Step 7.8](/flexi-capture/fls/tutorial4/4step7-8).