Hi,
Currently after quick research we found you need some steps:
Step 1: Go to wp-content/plugins/haru-vidi/includes/widgets/ then open file haru-video-categories.php
on line 227 you need to change the code:
wp_list_categories( $list_args );
to
$args = array(
'descendants_and_self' => 0,
'selected_cats' => false,
'popular_cats' => false,
'walker' => null,
'taxonomy' => 'video_category',
'checked_ontop' => true
);
wp_terms_checklist( 0, $args );
to display as checkbox list but you need reference more here:
wp_category_checklist()
https://stackoverflow.com/questions/27795447/custom-function-for-wp-list-categories-to-list-terms-as-checkboxes
and the result:
https://gyazo.com/62b34240b49f4b138df63db97d7087b6
Step 2:
You need to add js to process when you click on checkboxes in wp-content/plugins/haru-vidi/assets/js then open file haru-vidi.js
You need to write a js function to process click on checkbox here!
Maybe need to process with WP_Query (no ajax): https://developer.wordpress.org/reference/classes/wp_query/
and example with ajax call:
jQuery ajax filtering posts with checkboxes
You can research and we’ll help if maybe have some stuck.
Hope this helps!
***
Regards,
HaruTheme