Writing modular code using "require"

If have setup the sandbox but it only allows a single projects and module setup. I have also tried pulling files from Google Drive via a link but it doesn't seem to work. Not sure if its because it's https or because it doesn't reference a .js file directly or if I'm just doing it wrong.

Any possibility of supporting relative local references like NodeJS, such as the line below. I like to organize long code blocks into project specific modules that I don't necessarily want in a modules library or folder.

var onPage = require('./myTestPages').onPage;

NodeJS also supports reading JSON files that I find handy for loading configurations and data, such as the line below.

var cfg = require('./config.json');