item-by-item
item-by-item(start: auto, cont)(source)Display list, enum, or terms items one by one with animation.
Each item is revealed on a successive subslide. By default (start: auto),
revealing is relative to the current pause position — items appear one per
subslide starting from wherever the slide's animation has reached.
start also accepts a waypoint label (e.g. <my-wp>) or any waypoint
marker (from-wp(<wp>), get-first(<wp>), etc.) to anchor the reveal
sequence to a named position.