I've been getting annoyed with having to keep refreshing the scripts when working in an external IDE so I've made a plugin to take care of that for me. It will check every couple of seconds whether any files have changed and then re-add them to the solution if they have.
construct.net/en/make-games/addons/600/automatic-script-reloading
This makes use of getting the folder handler straight from the IndexedDB storage which I'm guessing isn't intended - so this may well break in the future. There's also a small possibility of file corruption; I've not encountered any issues yet, but use at your own risk and take a backup first.