> ## 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 2. Step 4: Pre-recognition

> Step 4 of FlexiLayout Studio Sample 2: run pre-recognition on batch images to find pictures and paragraphs that serve as signposts for locating fields.

Before you start creating document elements, you need to know which objects on the document can be used as "signposts" when looking for fields ([blocks](/flexi-capture/fls/template/blocks)). These are usually pictures and/or paragraphs that are consistently detected on all the images during [pre-recognition](/flexi-capture/fls/batch/prerecognition).

To start pre-recognition:

1. Select all the images in the batch.
2. Select the Pre-Recognize command in the **Batch** menu or in the shortcut menu of each image.

<Frame>
  <img src="https://mintcdn.com/abbyy/r-nfa7jujx5b9gKX/images/flexi-capture/fls/tutorial2_5.png?fit=max&auto=format&n=r-nfa7jujx5b9gKX&q=85&s=66652c5880b9bbe5bbb7023cc12f87a5" alt="Screenshot of the Batch window in ABBYY FlexiLayout Studio with all images selected and the shortcut menu open, showing the Pre-Recognize command highlighted." width="472" height="573" data-path="images/flexi-capture/fls/tutorial2_5.png" />
</Frame>

<Note>
  If you replace images in the batch or add new images, restart the pre-recognition procedure. If an image has not been pre-recognized, it will be pre-recognized when it is matched against the FlexiLayout.
</Note>