Plus then 4 is play from the top. Enter with six, by the way, is search again, which is discussed later. Basic navigation is by item or word. If you press the current item key now, you will hear this paragraph again. The item keys read paragraphs in documents like this one.
Items can be smaller chunks of information than paragraphs, such as a list item or a button.
You can step through everything in any web page by going one item at a time, with the 6 key. These are PCN word keys. When you precede a key with plus, that takes a related action. Press plus then 4, the extended previous item, to go to the top and start reading. When you press plus then 6, HPR goes to the bottom of the page.