Hi Robert,
I believe if you follow these steps you will be able to debug your app with IntelliJ.
-agentlib:jdwp=transport=dt_socket,server=y,suspend=n,address=5005
4. Deploy your app for Eclipse
5. On IntelliJ open your branch folder
6. Add new configuration
7. You should choose to add Remote JVM Debug
8. It should have the default settings with the above comment line arguments that you entered to your server configurations
9. Apply and save the configurations
Once you set this up, first you need to run your Studio Pro, then add you breakpoints on IntelliJ and click on the debugger button. If you try to do it without running your app on Studio Pro, it will not find the port 5005 and will not be able to connect to debugger.
Hope this helps.