Custom taxonomy in shortcode

Hi,

I have a custom post called “event”, and WP Posts Carousel does a great job of displaying it. I have added a taxonomy called “pageposition” (which might be given the value Front, for instance). How do I moderate the shortcode so that it only displays those events with the pageposition=>Front?

I have tried the following to no avail:

[wp_posts_carousel template="compact.css" post_types="event" all_items="10" show_only="id" exclude="" posts="" ordering="random" categories="" relation="and" pageposition="Front" show_title="true" show_created_date="false"... etc., etc.,]

Any tips gratefully received. Thank you!

https://wordpress.org/plugins/wp-posts-carousel/