Select one or more items on the Surface.
Drag the selection to the location you want to move it to.
Dropping the selection will move the items, on the Surface as well as in the file system.
When attempting to move items to a different volume of the file system, the items will be copied instead, similar to the behaviour in Finder.
Drag the selection and hover over a potential drop target to automatically focus on that target.
(To adjust the delay of autfocus open Raskin Preferences.)
Hover over a Place to focus on the top of that Place.
Hover over the Surface background, between and around Places, to zoom out.
Follow the steps for moving items.
Press the Option key while dragging and dropping the items. The "plus" cursor indicates that the items will be copied instead of moved.