Order of elements matters. They are executed in the order they appear in the side-bar. You can sel or unsel elements graphically, or with text in the sidebar. Then, cut, copy, paste, shift or transform them. You can set the current insert point element by clicking the element in the side-bar and making it RED. Insert Shift Suborigin is an element which shifts subsequent elements. Perhaps, you inserted a sprite's elements from the clip and want to shift it around? This command is also useful if you call SpriteInterpolate() in programs.
Sprite Edit Menu Help