Tweak the Step markup for a multi-step form (for Form ID 5)

functions.php

/**
 * Tweak the Step markup for a multi-step form (for Form ID 5)
 */
function hra_progress_steps_markup( $progress_steps, $form, $page ) {
	$progress_steps = str_replace( '>1</span>', '>Step 1</span>', $progress_steps );

	return $progress_steps;
}
add_filter( 'gform_progress_steps_5', 'hra_progress_steps_markup', 10, 3 );