Can I place a reorder of the same ticket with some changes?

Yes!  If you created an account when you ordered and were signed into it, your order will be saved in your history.  Simply click on "My Account" and go to your order history. Find the item you would like to reorder and click on it. There will be an option button to reorder. When you click reorder, this will take you to the page where your information was originally typed in and will allow you to make any edits before adding item to your cart and checking out with another order.