Viewing Changes Made Using the Presentation Tools As you make changes in the PRESENTATION section, you can preview your changes in real time by clicking on the Staging and Testing links in the upper right-hand corner of the Tizra control panel (Figure 543). Staging and Testing differ only in that Staging lets you bypass access control and view all content, whereas Testing simulates the experience a normal end user would have, including being intercepted by access control and seeing any sales Offers that may be in place. Figure 543 The best approach is usually to keep the Staging or Testing version of the page type you're working on open in a browser tab, and reload it periodically to monitor changes.