Sort Order when Viewing WaaG by Menu Category
When viewing the WaaG by menu category (via the display options), the menu categories are sorted according to how the menu categories are sorted via Tools & Setup > Menu Settings (see Changing Sort Order of Menu Categories for more information), and the menu items are sorted in each category according to how you sort the items in the menu day view (for more information, see Sorting Menu Items), with choice 1 items being listed before choice 2 items.
Sort Order when Viewing WaaG by Choice
When viewing the WaaG by choice (via the display options), menu items are listed within each choice according to the sort order of the menu categories via Tools & Setup > Menu Settings (see Changing Sort Order of Menu Categories). Items within a same category are sub-sorted according to how you sort them when in the menu day view (for more information, see Sorting Menu Items).