Improve SMB -> SMB move command

[joostlammers]

First of all, I really like this app as it provides all functionality to get a proper NAS syncing working. I have several steps, including one that will move files older than x days from a backup folder to an archive folder. Both folders are on the same smb server and as the files are quite big, doing the copy-first-then-delete move takes way more than it should. Can this be replaced by a simple SMB move? The "use temporary file first" option can also be disabled when doing that imho.