I'm used to ftp'ing into my hostgator server fro nautilus on my ubuntu laptop and using nautilus to upload files and edit files on the server.
Is it possible to use nautilus to do the same with my droplet?
You should be able to use nautilus to edit the files hosted on your droplet. In order to do that you can try to following commands:
Open your terminal and type (if it fails, try with sudo):