show some widget

add_action('admin_head',function () {
    ?>
    <style id="remove-widget">
        [id="widget-list"] [id*="_epic_module_"]  {
            display:none;
        }
        [id="widget-list"] [id*="_epic_module_block_9"],
        [id="widget-list"] [id*="_epic_module_block_12"] {
            display:unset;
        }
    </style>
    <?php
});