Question: I have been using Intellij IDEA (w/ Python Plugin) for quite some time, and I never have heard about the Scientific Mode before today.

Well, it seems an interesting tool for my ML projects but I cannot find it where it in my IDE.

So, the question that stands is: does it exist for the community edition of Intellij IDEA w/ the Python plugin?

Looking forward for your experiences w/ it. Thanks.

Answer: 
It is supported in Professional Edition only, please see <https://www.jetbrains.com/help/pycharm/scientific-tools.html>
providing the IDEA version is a community, yes.

If it is Ultimate, then the option should exist <https://www.jetbrains.com/help/idea/matplotlib-support.html>