One thing to remember: in Quark, to see the link symbol on the master page, you must have the guides visible (press F7). You can make a text box automatic by linking to that symbol even if you didn’t make an automatic text box when you first created the document.

Also, if you have a series of text boxes linked like that, when you paste a long piece of text into the first box, you don’t have to have enough pages waiting to hold all of it; Quark will create the needed pages.