# Hierarchical type

[FileBird Document Library Pro](https://1.envato.market/2rEEOG) allows you to show a folder structure with breadcrumb navigation and nested folders.

{% hint style="info" %}
This feature is available in the [Pro version](https://1.envato.market/2rEEOG).
{% endhint %}

Hierarchical type allows you to display a root folder that contains all sub-folders mirroring from your WordPress media library back-end. 

In this mode, you can select only **one main folder**. Its sub-folders will also be included in the folder tree. Your selected main folder will be the root folder.

<figure><img src="/files/UPpevItOfuH6hk5U21fz" alt=""><figcaption><p>A labelled image showing all the display options available for use in the Document library's settings.</p></figcaption></figure>

1. **Folder:** This is the selection option which allows you to choose the source folder for displaying the documents in front end.
2. **Structure Display:** This option allows you to show folder tree in the frontend. If the selected folders have the same folder parent, the breadcrumb will display the path of the common parent of the subfolders. If the subfolders are on different levels, the breadcrumb will show up to the path of the nearest common parent of the subfolders.

* When you click on the arrow, it will expand a subfolder of the current folder.

<figure><img src="/files/S4UMB6Guw0KS5vteBuyC" alt=""><figcaption></figcaption></figure>

* When you click on the text library, the selected folder will immediately load

<figure><img src="/files/qU3mlOMMECYNITAy5nSk" alt=""><figcaption></figcaption></figure>

* When viewed on mobile, the layout will automatically be converted to select box style

<figure><img src="/files/AAM4PbjvT5ziJ0f3CHh6" alt="" width="241"><figcaption></figcaption></figure>

3. **Search Scope**

* Narrow: Allows you to search for files in the folder you have selected
* Extended: Allows you to search for files in the folder you selected and files in its subfolders


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