# Add a nested menu
Each collection can be set up with nested navigation. This is useful if you have a large collection with multiple sub-groupings within. For example, you may have a collection titled Accessories using nested navigation you could then set up links to Wallets, Phone Cases, and Bags.
In this example clicking "Elastic" would navigate to a new page loading the "Elastic" collection page.
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### Create metafields definitions
1. Go to **Settings** > **Metafields**
2. Click **Collections** then click **Add definition**
3. Set **Namespace** and key to `custom.subcollections`
4. Click **Select content type** and choose **Single line text**
5. Click **Save**
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### Add data to Collection metafield
1. Open the collection you'd like to add a tag filtering too
2. Scroll to the bottom **Metafields** area
3. Enter a text value for each tag filter
* There's no need to include "All" as that will be the first link within tag filtering
* Each entry should match a tag that is present within your collection
* This text must be formatted in a specific way. Please ensure each menu item is separated by "&" then ensure each title and url for each item is separated by a ",".
* It should look something like this:
* `Tops,/collections/tops&Bags,/collections/bags&Shorts,/collections/short`
4. Click **Save**
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**Further explanation:**
Enter your sub-collection links in this format:
`Label,/collections/handle&Label,/collections/handle&Label,/collections/handle`
* `Label` = the text shown to customers (example: `Tops`)
*Example:* **Sibling Products,/**
* `/collections/handle` = the link destination. You can find your collection handle within the collection your trying to link to. Reference the screen shot below.
*Example:* **Collections/sibling-products**
Screen shot of where to find your collection handle
* `&` = separates each menu item
*Full example:* **Sibling Products,/collections/sibling-products**
