> ## Knowledge Base Index
> Fetch the complete knowledge base index at: https://doc.common-services.com/sitemap.xml
> Use this file to discover available pages before exploring further.
> Pure-Markdown content can be obtained by appending a '.md' suffix to the content URLs listed in the sitemap (without the trailing slash).

# My Feeds > Parameters > Categories - Feed.biz

The Categories page serves two main purposes: choosing which store categories you want to export to your marketplaces, and applying your rule-filled Profiles to those categories.

![](https://storage.crisp.chat/users/helpdesk/website/-/3/f/a/8/3fa8ee645cd13200/screenshot5605_12d9d2w.jpg)
---

### Goal 1: Choose Categories


Select the store categories you want to export to the marketplace. You can bulk-select multiple categories by holding the Shift key while clicking.

---

### Goal 2: Applying Profiles and Rules

Once a Profile is assigned to a product category, every item inside that category must follow the rules grouped within that profile.

* **How it works:** If you have a profile containing a rule to ignore items priced under $10, assigning that profile to a category will automatically block all products under $10 within that specific category.
* **How to assign:** Use the dropdown menu in the **Profile Mapping** column next to your chosen category to select the correct profile.

![](https://storage.crisp.chat/users/helpdesk/website/-/3/f/a/8/3fa8ee645cd13200/screenshot5604_3tehh.jpg)

---

### Bulk Selection and Editing Shortcuts

To save time when managing large product catalogs, you can use the following interface shortcuts:

* **Select Multiple Categories:** Click the checkbox for your first category, hold down the **Shift** key on your keyboard, and then click the last category in your target range. This will automatically check all categories between the first and last selection.
* **Duplicate Profiles Downward:** Clicking the double down arrow icon within a profile selection field will copy that specific profile to all subsequent categories listed below it. This automatic duplication will stop if it hits a lower category that already has a different profile assigned to it.