Drag & Drop
You can use Drag & drop if you press the left mouse button, and while
holding it, moving the cursor to another panel or window and then releasing the button.
If you see a crossed circle cursor while dragging with your mouse, it means that
this window does not support drop action.
You can drag & drop between directory listing panels (will carry out
copying of files) or
between the server panel and queue fold (selected files will be inserted
into the queue list)