Did you have a look at the Cursive doc in the section Remote REPL
In theory you should be able to get it setup by:
Opening a separate terminal and run the command make clj-dev
In IntelliJ IDEA, following the docs for Remote REPL, you create a new config for Clojure REPL -> Remote -> You enter 127.0.0.1 as the host and the port I guess would be either 8080 or 8880 depending on if you want to connect either to Barista or Storefront.
In theory this would connect your Cursive REPL to the REPL already started with the command line.