> For the complete documentation index, see [llms.txt](https://happybara.gitbook.io/streamly/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://happybara.gitbook.io/streamly/reference/streams/modify/settings.md).

# Stream settings

### To modify the public Slack channel or delete a [Stream](/streamly/concepts/stream.md), select :gear:`Stream settings` from the overflow menu (<img src="/files/-M9jiC-hBUmQLo6YZeMn" alt="" data-size="line">) in the **`Streams`** section of the app home.

####

#### Modify public channel

![](/files/8yM4IxsgvRTVlhgbQLEO)

To move the **Stream** to a new public Slack channel, choose one from the menu under `Change Slack channel`.

{% hint style="warning" %}
Only one **Stream** can be configured per public Slack channel.
{% endhint %}

####

#### Subject prefix

![](/files/bkspKT0K0G61upkQBNyM)

Add, modify or remove an a `Subject` prefix and press 'enter' to apply your changes.

{% hint style="info" %}
If provided, the`Subject` prefix and a five-digit, autoincrementing ID will be prepended to each **Request** `Subject`.

> \- E.g., `ABC00001_Request subject`\
> \- The following special characters are not allowed: `<`, `>`, `@`, and `#`
> {% endhint %}

Use the `Reset Request ID number` button to set the autoincrementing ID back to zero for the **Stream**.

> This button will only be visible if a prefix is in use and there has been at least one **Request** made in the **Stream** using the prefix.

#### Delete Stream

![](/files/Us5EoJBgNsyED5PBE16P)

To delete the **Stream** entirely, click the :bomb:`Delete` button.

{% hint style="danger" %}
Deleting a **Stream** is a destructive action and while some functionality can be restored by recreating the **Stream**, certain tool connections are not recoverable.
{% endhint %}