> For the complete documentation index, see [llms.txt](https://docs.helmut.de/helmut4-releases/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.helmut.de/helmut4-releases/v4.6.1/helmut4-components/streamdesigner/layout/variables.md).

# Variables

Opens a dialog for managing variables. In contrast to the variables that are managed via the Preferences menu, the variables managed here can also be controlled via streams, i.e. they can be created, changed or deleted via stream. They can also be used globally within each stream. There are three different action nodes available for this.

<figure><img src="/files/cu5uSX86Owy81wDxcNlt" alt=""><figcaption></figcaption></figure>

#### New Variable:

Opens a dialog with which it is possible to add new variables. Opens a dialog with which it is possible to add new variables. The character length of each key and value is limited to 255 characters.

<figure><img src="/files/BuQAyVDWvsb8egOsvjfH" alt=""><figcaption><p>New Variables Dialog</p></figcaption></figure>

#### Protected:

This toggle switch enables a variable to be protected globally. A protected variable cannot be changed via a stream, i.e. neither edited nor deleted.