Collection Association Set

**"Collection Sets"** are primarily used to associate multiple collections together, allowing users to switch directly between collections within the same interface.

For example, on the official MrDoc website, the three collections—*MrDoc Deployment Guide*, *MrDoc User Manual*, and *MrDoc Documentation Examples*—often reference each other. Sometimes, readers need to switch from one collection to another to view related documents. By adding these three collections to a Collection Set, a dropdown menu will appear next to the collection title on the left side, enabling direct switching to the specified collection.

The effect is as follows:

![](http://file.mrdoc.pro/mrdoc-oss/img/2025/01/30/710d798007ac4713a3b137fc8c2c32f51465.png)

## Creating a Collection Set

In the backend management page, under the "Collection Management" section, navigate to "Collection Set Management" and click the "New" button to create a new Collection Set:

![](http://file.mrdoc.pro/mrdoc-oss/img/2025/01/30/eea81b08a4214d12907b68ccbd9d35e75738.png)

Please note that collections within a Collection Set are mutually exclusive, meaning a collection can only belong to one Collection Set.

## Managing Collection Sets

Once a Collection Set is created, you can intuitively view and manage it in the tree structure on the Collection Set Management page:

![](http://file.mrdoc.pro/mrdoc-oss/img/2025/01/30/0f9c7b14e81a485eafbd8f60db7c0b215525.png)

### Moving Collections

You can directly drag and drop a collection into another Collection Set:

![](http://file.mrdoc.pro/mrdoc-oss/img/2025/01/30/202501301914_20250130191527071044.gif)

### Modifying Collection Sets

Right-clicking on a Collection Set will bring up a context menu, allowing you to modify or delete the Collection Set.

![](http://file.mrdoc.pro/mrdoc-oss/img/2025/01/30/202501301916_20250130191721951619.gif)