Can I rearrange slices sliced by the Sprite Editor?

When slicing an image using the Slice Editor, it creates 'sub' items of the image. Can those 'subs' be arranged manually?

For example, I got capybaras.png. I fire up the Sprite Editor and slice different capybaras. Now I have capybaras_0, capybaras_1, capybaras_2, ... What if I wanted capybaras_1 to be after capybaras_2? Can I rearrange that (and then change the _1 _2 names to avoid confusion)?