> Portal Navigation: > > - Append `.md` to any URL under `https://dev.wix.com/docs/` to get its markdown version. > - Pages are either content pages (article or reference text) or menu pages (a list of links to child pages). > - To get a menu page, truncate any URL to a parent path and append `.md` (e.g. `https://dev.wix.com/docs/sdk.md`, `https://dev.wix.com/docs/sdk/core-modules.md`). > - Top-level index of all portals: https://dev.wix.com/docs/llms.txt > - Full concatenated docs: https://dev.wix.com/docs/llms-full.txt ## Resource: ItemModifierGroups ## Article: Introduction ## Article Link: https://dev.wix.com/docs/velo/apis/wix-restaurants-v2/menus/item-modifier-groups/introduction.md ## Article Content: --- title: Introduction --- # About Item Modifier Groups The Item Modifier Groups API allows you to manage your item modifier groups. Item modifier groups gather individual menu items (or [item modifiers](https://dev.wix.com/docs/velo/api-reference/wix-restaurants-v2/menus/item-modifiers/introduction.md)) that can be used to modify, enhance, or specify existing menu items in an order. For example, a modifier group called "Pizza Toppings" might have the following modifier items: "extra cheese", "pepperoni", and "mushrooms". With the Item Modifier Groups API, you can: - Create, delete, and update item modifier groups. - Retrieve information about item modifier groups. ## Before you begin It's important to note the following point before starting to code: - You must install the Wix Restaurants Menus (New) app. To use the Item Modifier Groups API, import `{ itemModifierGroups }` from wix-restaurants.v2: ```js import { itemModifierGroups } from 'wix-restaurants.v2'; ``` ## Terminology - **Menu**: A list of food and beverage items available for purchase at a restaurant. - **Item modifier**: A type of menu item that serves as an addition to an existing menu item. For example, "Almond milk" could be an item modifier that can be applied to a coffee order.