Elementor has a much-improved Navigator, that is a great way to locate to any block you want to change. Just click the ‘Navigator’ icon (bottom left – circled) and to close it, click the ‘x’. Within the Navigator, click on the headings to navigate and the arrow to expand / minimize etc. You can also do things like duplicate or delete a block etc. To select new blocks and add them to you post or page, click the blocks icon, near the top-left and circled. To exit, click the hamburger icon, which is the other one, extreme top-left, then click Exit.