The add-on has various additional settings that help tailor the functionality to the site.
Dynamic Category Filter - Broad Match
The Dynamic Category filtering can work in two modalities, one is the Broad Match and the other is a Strict Match.
This is controlled with an advanced setting called Dynamic Category Filter - Broad Match, when this setting is turned ON the results will return members listed in ANY of the selected categories. Set to OFF to only return members listed in ALL of the selected categories.
Dynamic Category Search Accordions Open
If this is set to ON, it will load all the accordions on the dynamic category sidebar modules open
Dynamic Category Filtering - Only Show Categories Which Belong To The Top Category
System Variable: dynamic_category_filter_show_categories_related
When clicking on dynamic filters checkboxes, keep the top or sub category context from the URL so the dynamic filters in sidebar only show categories related to the page the category filter widget is being displayed on.
What this setting does is that it will slim down the options available inside the sidebar search module to include only the corresponding Sub categories for each Top level category:
This takes effect when a Top level category is specified in the URL of the search results page.