kbrown

I was able to figure this out with help from https://developer.ww.wp.xz.cn/themes/functionality/sidebars/

I created sidebar-affiliate.php with this code from sidebar.php

<?php $layout = hu_get_layout_class(); ?>
<?php if ( $layout != 'col-1c'): ?>

	<div class="sidebar s1 collapsed" data-position="<?php echo hu_get_sidebar_position( 's1' ); ?>" data-layout="<?php echo $layout ?>" data-sb-id="s1">

		<button class="sidebar-toggle" title="<?php _e('Expand Sidebar','hueman'); ?>"><i class="fas icon-sidebar-toggle"></i></button>

        <div class="sidebar-content">
            <?php dynamic_sidebar( 'affiliate-sidebar' ); ?>
        </div><!--/.sidebar-content-->

	</div><!--/.sidebar-->

	<?php
    if ( in_array( $layout, array('col-3cm', 'col-3cl', 'col-3cr' ) ) ) {
      get_template_part('sidebar-2');
    }
	?>

<?php endif; ?>

And added <?php dynamic_sidebar( ‘affiliate-sidebar’ ); ?>

And in my page template I replaced <?php get_sidebar(); ?> with <?php get_sidebar( ‘affiliate’ ); ?>