SSH key is used for SFTP's(FTP over SSH) connections.

Click "Add SSH Key" button to add an SSH key. First you need to specify a name for this key.
It's simply an identifier for you to distinguish the SSH key from other SSH keys.
Then you can choose a key file from your hard disk.
If you do not have any key file, then just click the "Create Key File" button, an SSH key creation form will appear.
