Filter for su_posts

Hi there,

Is there a way to provide a user-filter for posts generated by the su_posts shortcode?

I have the following set up for example, which correctly pulls all the Articles for the 3 taxonomies I’ve included. However I’d like to be able to give the user a filter-menu above the list based on a 4th taxonomy, which would act like a Tag, to further filter and only show the results according to that 4th taxonomy if selected, and if de-selected, would again show all results according to the first 3 taxonomies, if that makes sense? ??

[su_posts posts_per_page=”-1″ post_type=”article” taxonomy=”section” tax_term=”french-stream” taxonomy_2=”subsection” tax_2_term=”ey-primary” taxonomy_3=”stream_section” tax_3_term=”notices” tax_relation=”AND” order=”desc”]

Thanks in advance for your advice…

Trevor