The latest release available as of today as version 4.2 substantially improves support to copy files from server to server. Open two browser windows each with a connection to any server and drag files and folders between the browsers to copy files. A transfer is added to the Transfers window reading data from one server and uploading to the destination concurrently. This is much faster than in previous versions without creating any local temporary files but streaming directly from one remote server through the local host to the other server.
Copy from SFTP server to Rackspace Cloudfiles.