This is a development test of new parallel copying feature that may be making its way into the next release.

If you are familiar with robocopy, it's an equivalent of its /mt option, which causes several files to be copied, well, in parallel.

As it's probably obvious from the above screenshot it works really well, especially for smaller files when an overhead of opening and closing file is comparable to the bulk I/O time. Here, for example, C:\Windows\Fonts folder with about 1500+ items is getting copied to a Synology NAS over 1Gbps link.

This feature is going to be available under a Pro license only. More on this to follow.