Sorry to interrupt the Webstorm versus Eclipse convo haha but I have a question about grouping custom script parameters on the company level. I have created parameters but currently they show up under Setup > Company > General Preferences > Custom Preferences under a "General" subsection. However I see other subsections that have been created to group other custom script parameters together and I would like to do the same. I found the scripts producing these parameters but I did not find anything on the parameters or the script that would indicate the subsection. How do I set those up??

You can't control the grouping. The subsections you are seeing is because there are bundles that are also creating company level script parameters. NetSuite groups those by the bundle that created it.