It already does this if the item has no coordinates set (and you don't select the "Use Parent Coordinates"). If the block is on an album page and the album does not have coordinates set, it will use the coordinates of the items in the album and auto-center and zoom based on those items.
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It already does this if the item has no coordinates set (and you don't select the "Use Parent Coordinates"). If the block is on an album page and the album does not have coordinates set, it will use the coordinates of the items in the album and auto-center and zoom based on those items.