Multiple instances of infinite scroll

Hi.

How do I do multiple columns with multiple instances of infinite scroll (like mashable.com)? I have three colums, the first one is $query1 = new WP_Query('post_type=post');, the second one is $query2 = new WP_Query('post_type=video');, the third one is $query3 = new WP_Query('post_type=pdf');

so the setting is rather simple. I can for example use jetpack infinite scrolling on the first column without any problems: with

$new_args = array(
    'posts_per_page'   => $args['posts_per_page'],
    'paged'   => $args['paged'],
    'orderby'          => 'date',
    'order'            => 'DESC',
    'post_type'        => 'post',
    'post_status'      => 'publish',
);

but how do i make multiple instances for post_type=video and =pdf? I googled the problem and found some posts on this subject, most are quite old. So I was wondering if there is by now a hack or something for jetpack, infinite-scroll plugin or something else out there?