> For the complete documentation index, see [llms.txt](https://docs.b2ihealthcare.com/snowray/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.b2ihealthcare.com/snowray/v3.1/reference/resources/bundles.md).
# Bundles
Bundles help users group their resources into an organized structure. Bundles are essentially folders in which users can collect resources related to a given context.
## Browsing
Bundles can be accessed from the [Resources Page](/snowray/v3.1/reference/resources.md#resources-page), where they are displayed in a list-style view together with other resources.
{% hint style="info" %}
Clicking on the Bundle title will take you to its ***Overview*** tab, while double-clicking on the row will navigate you down one level, i.e. showing the content of the given Bundle within the Resources page list.
{% endhint %}
## Searching
Users can look up certain Bundles by running a search from the search bar located above the resource list.
Users also have the option to use advanced filtering when clicking on the 
icon.
Once the required filters are selected, pressing  will restrict the list to the matching resources.
{% hint style="info" %}
You can use the term search and the filters together to refine your searches even more.
{% endhint %}
{% hint style="info" %}
When you have filters applied, a counter next to the icon will indicate the number of active filters.
{% endhint %}
## Reference Set Collections
Reference Set Collections represent a special Bundle that can only hold [Reference Set](/snowray/v3.1/reference/resources/valuesets.md#reference-sets) type resources sharing the same domain.
Setting the SNOMED CT Edition, Module, and Query type reference set parameters in the creation wizard of a Reference Set Collection will define these properties for the included Reference Sets as well.
In addition to properties, versioning is also inherited, i.e. publishing a release for the Collection will publish the included Reference Sets as well.
{% hint style="info" %}
Reference Sets within a Collection can only be [upgraded](/snowray/v3.1/reference/resources/upgrade.md) together.
{% endhint %}
---
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