> 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.

![Search bar](/files/-MgBKrSaIWBzXfIddZMW)

Users also have the option to use advanced filtering when clicking on the <img src="/files/-MgF_7lK96B0cNPVQTro" alt="" data-size="line"> icon.&#x20;

Once the required filters are selected, pressing ![](/files/8fT5Jr3hPTvLSK1yRq81) 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.&#x20;

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 %}