wpCasa: Set default sidebar settings on metabox
<?php
/**
* Set default sidebar settings on metabox
*/
add_filter( 'wpsight_meta_box_listing_layouts', 'custom_meta_box_listing_layouts' );
function custom_meta_box_listing_layouts( $meta_box ) {
$meta_box['fields']['sidebar']['std'] = 'sidebar-left';
return $meta_box;
}