First head to the "order & sort" view.
You should be able to drag and select multiple items - then drag them into position.
e.g. click and drag around the item
You should then see a little box (with the number of items you have selected. In this example "2")
You then click and drag this into where you want the items to go.
Then release and it should drop them in. Here's a short video on how to move multiple items.
If you have any questions please get in touch at firstname.lastname@example.org