[Steven Zahm]

@ Kasper

Here's how you would remove the default action and add your own:

add_action( 'plugins_loaded', 'cn_remove_actions' );

function cn_remove_actions() {

  remove_action( 'cn_list_action-view_all', array( 'cnTemplatePart', 'listAction_ViewAll' ) );
}

add_action( 'cn_list_action-view_all', 'cn_view_all_link' );

function cn_view_all_link() {

  echo '<span style="font-size:18px;border:1px solid #ccc;color:#0066cc;padding:4px"><a href="#">View All</a></span>';
}

Tweak as desired.