Hobbyexpress.com typically allows customers to cancel or modify their orders, but the specific conditions may depend on various factors, including the order status and how much time has elapsed since the order was placed. If an order has already been processed or shipped, it may not be eligible for modification or cancellation. To initiate a cancellation or modification request, customers are usually directed to the order management section of the website, where they can find relevant options based on their order status. It is advisable to act quickly, as the window for making changes can be quite narrow. For the most accurate and up-to-date information regarding cancellations or modifications, it is a good idea to check the current web page or refer to any order confirmation emails for guidance.