Change Course Add to basket text

Hi, I have added the following to wplms customiser add_filter('wplms_take_this_course_button_label','my_custom_labels');   function my_custom_labels($html,$course_id){   $html='Purchase '; }   and this to functions.php add_filter( 'woocommerce_product_single_add_to_cart_text', 'woo_custom_cart_button_text' );    // 2.1 +   function woo_custom_cart_button_text() {   return __( 'Purchase', 'woocommerce' );   }   but none will change the button text for course add to basket.   Any way of doing this? Thanks