jQuery intellisense for PyCharm?

I'm trying to get PyCharm to render intellisense for jQuery code like this one for C#: https://www.nuget.org/packages/jQuery-vsdoc/

I found this help article about enabling the library:

https://www.jetbrains.com/help/pycharm/2017.2/configuring-javascript-libraries.html

...but my Languages & Frameworks menu does not contain a "Javascript" node. Is that a paid feature?