We see the three Subscript Elements appearing in a list box with a tab that displays the Subscript Range name (task). The first Subscript Element (design) is highlighted. Analysis tools will operate only on the selected (highlighted) Subscript Elements in a Range. To toggle the highlight status of a Subscript Element, click on it. You can also use All to highlight everything and None to highlight none. You can edit the subscript range in the Equation Editor at any time by clicking the Edit… button.
The Full button provides a more elaborate control designed for Subscript Ranges with a large number (> 12) elements. Details on the Subscript Control are contained in the Reference Guide.
