Hi, Ibrahim. 
 

Unfortunately, this is not an available feature and must have been displayed by mistake. Apologize for the confusion on our side. 
 

Best regards 
Knut

is there a plan to add such a feature?

There are no concrete plans. 

Cognite Data Fusion works great with self-hosted notebooks like Jupyter for customers to setup the ones they prefer. There are guides for authentication on docs.cognite.com and how to use notebooks are featured in Cognite Academy courses. And of course Cognite Python SDK works great on Jupyter.