Need tip on creating comparable IDEA config per this Eclipse spec

I am a #CitizenScientist/Historian working on an ontology and DSL based on the cidocCRM that integrates the complex document structure and content depiction models of digital collections of serial publications, most specifically, the 1.4M+ pages of computer magazines available at the Internet Archive.

ATM, I am attempting to install the brilliant LAREX platform (http://www.is.informatik.uni-wuerzburg.de/index.php?id=181460) created by Christian Reul and his team at the U. of Wurzburg. This Open Source project is available on GitHub here: https://github.com/chreul/LAREX.

In Christian's brief overview/install instructions, the Eclipse IDE is recommended as this is a European academic project which emphasizes no-cost tools along with its Java-based platform. Under the Windows section of the install instructions, the steps to install the Java SDK, Maven, Tomcat, and OpenCV are pretty straight forward and easily done. The item that has me a bit perplexed is this:

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Java EE for Web Developer

In Eclipse go to Help -> Install New Software -> Work with neon -> Install Web, XML, Java EE and OSGi Enterprise Development

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QUESTION/REQUEST: Could someone please give me your thoughts on how this configuration would be replicated to whatever extent possible in the latest IDEA?

I have an "everything" license but am primarily a PyCharm/Python user. Having spent the bulk of my professional career as a Smalltalker and lived through the enterprise Smalltalk/Java war, I naturally have an inbred reluctance to use Java but do so when necessary. My intent in getting a LAREX dev box going with IDEA as my IDE is so I can work with my Wurzburg friends using Kotlin which is so much more exciting and sensical to me as a Smalltalker.

Thanks in advance for any recommendations you may share.

-: Jim :-