Adding JShell Console to custom version of IDEA CE

I'm using a custom version of IntelliJ IDEA CE on MacOS 10.15 Beta, specifically the version made to accompany the book "Algorithms" by Robert Sedgewick and Kevin Wayne, which I downloaded from https://lift.cs.princeton.edu/java/mac/ 

I like this version a lot as the menus are quite minimal and uncluttered and it mostly has what I need for my purposes.

For example, this is what the Tools menu looks like:

However there's one missing feature I wish were available in this custom IDE, which is the JShell console. Is there any way to add it or enable it without me having to install the standard version of IntelliJ IDEA CE? (To be clear, I'm aware that the JShell REPL is a Java feature and I know how to invoke it from the command line.. the thing is I would like to be able to use it within the IDE)

Thank you!