Magento – Edit shipping description in “checkout onepage review”

I'm not an expert of Prototype.js, but it seems like the progress sidebar is modified by the reloadStep function of the skin/frontend/base/default/js/opcheckout.js script.

reloadStep: function(prevStep) {
    var updater = new Ajax.Updater(prevStep + '-progress-opcheckout', this.progressUrl, {
        method:'get',
        onFailure:this.ajaxFailure.bind(this),
        onComplete: function(){
            this.checkout.resetPreviousSteps();
        },
        parameters:prevStep ? { prevStep:prevStep } : null
    });
},

Where prevStep + '-progress-opcheckout' (prevStep could be billing, payment etc.) determines which block has to be edited.

One solution, but clearly not the best way, would be to add the code below just after the step-title div.

<div id="<?php echo $_stepId ?>-progress-opcheckout"></div>

As an id has to be unique, you would have to disable completely the progress sidebar, so not only hiding it.

Main reason is function savePaymentAction().

Whenever,this function is called that time magento

is load layout handler checkout_onepage_review on basic of when you choosed payment method does not have redirection url .

Like Cash on Delivery,Check memo,credit card save etc

if (empty($result['error']) && !$redirectUrl) {
/* call review step */
                $this->loadLayout('checkout_onepage_review');
                $result['goto_section'] = 'review';
                $result['update_section'] = array(
                    'name' => 'review',
                    'html' => $this->_getReviewHtml()
                );
            }