Anyone using WebStorm? I'm moving away from the shitty Eclipse IDE. Where can I add the SS2.0 ZIP file from the file cabinet? I need my code to reference the library.

This isn't what you asked for, but here's a NPM grunt package for uploading scripts to your netsuite account. There's a suitebundle you install in netsuite that adds a restlet and integration record. https://www.npmjs.com/package/grunt-netsuite

NetSuite has an official plugin

Your question isn't making sense to me. What SS2.0 ZIP file do you mean? Where you put things in the FileCabinet is not directly tied to your IDE (unless using SDF where the locally directory structure mirrors the file cabinet, but in that case you'd typically deploy using SDF)