Sortable Post Slider

Hello,
I would like to make the postlider element sortable the way Masonry is. I don’t want to use the content slider or masonry because I want to display the posts exactly the way the postslider displays them except for, I want users to be able to sort by custom taxonomy (the way you can sort/filter using the masonry based on taxonomy chosen).

I added the following to postslider.php inside the shortcodes directory in my child theme, but I KNOW I’m missing the second part of the sortable puzzle because this only allows me to choose ‘sortable’ in the element in admin. What else do I need to add to this postlider.php to allow for this functionality?

array(
“name” => __(“Sortable?”, ‘avia_framework’ ),
“desc” => __(“Should sorting options based on the taxonomies above be displayed?”, ‘avia_framework’ ),
“id” => “sort”,
“type” => “select”,
“std” => “yes”,
“subtype” => array(
__(‘Yes, display sort options’, ‘avia_framework’ ) => ‘yes’,
__(‘Yes, display sort options and currently active taxonomy’, ‘avia_framework’ ) => ‘yes-tax’,
__(‘No, do not display sort options’, ‘avia_framework’ ) => ‘no’)),

Thank you.