Cloud accounts · FTP and SFTP servers
How do I add an FTP server, and why does Storage Studio warn me?
Short answer: Choose Add Account, then FTP, and enter server, port (usually 21), username and password. Because FTP sends passwords and files unencrypted, you must tick the risk checkbox before saving. Use SFTP if your server offers it.
Choose Add Account → FTP and fill in the server, port (usually 21), username and password, plus an optional base path. Storage Studio shows a red FTP is not encrypted warning because FTP sends your username, password and files in the clear, where anyone on the network path could read them.
To save, tick "I understand the risks and want to add this FTP account anyway." — Save account stays disabled until you do. If your server offers SFTP, use that instead; it's the same idea, but encrypted. FTP passwords are still strength-checked, because a weak password sent in the clear is worse, not better.