Atom does not support ProxyJump or port forwarding as VS Code. However, you can use rsync gateway, because Atom downloads the file from the server and edits on a local machine, and uploads it. For remote file editing, you need to install "remote-ftp" package.
Install → searching "Remote-FTP", and Install
Configuration: Package → Remote FTP → Create SFTP config file
Edit config files (You need to change, host, user, pass and maybe remote. host: rsync.hpcc.msu.edu, user, pass, and remote: your net it and password, and your home dir path)
Menu activation: Package → Remote FTP → Toggle
Click remote, and connect