If you place a single candy cane and then try to select it by clicking on the preview of it it appears to be impossible to select it. You can select it via model list or via a selection box extending around it.
On a related issue the individual candy canes appear to be locked to something like a 3:2 ratio regardless of how you stretch the cane via the corner thingies. If you have more than 1 then you end up with overlapping canes.