You can reorder Smart Filters in the Layers palette, duplicate them, or delete Smart Filters if you no longer want to apply them to a Smart Object.
Reorder Smart Filters
In the Layers palette, drag a Smart
Filter up or down in the list. You can’t reorder Smart Filters applied
from the Filter Gallery.
Photoshop applies Smart Filters from the bottom up.
Duplicate Smart Filters
In the Layers palette, Alt-drag
(Windows) or Option-drag (Mac OS) the Smart Filter from
one Smart Object to another, or to a new location in the Smart Filters list.
Delete Smart Filters