I used the One-Click App Install of Ghost and I was going to edit config.js with Notepad++ using NppFTP. I have already setup Ubuntu to not allow root login, setup a new user, as well as a SSH key.

When I use this new user to SFTP (Notepad++ or FileZilla) I cannot upload to the ghost folder. I assume this is because the ghost folder is owned by the ghost user, but how do I go about allowing my new user to upload files to the ghost folder?
Can I chown the ghost folder or would that mess with the application? I assume I don't want to add write permissions to the group rather than just a user, but I'm not seeing a way around this.

Any help would be greatly appreciated.