Enable the display of presets associated with parent levels of hierarchical taxonomies (see the Display on setting) on all the child pages as well. Uncheck if you don’t wish for the parent-level presets to display on the pages of their respective hierarchical sub-levels.
Imagine that you have a shop with a Shoes category that has Sandals and Sneakers sub-categories. Enable the current option to display any preset that has its Display on section associated with the Shoes category in the Sandals and Sneakers sub-categories as well.