Placing a story into more than one text block, column, or page is called flowing (or threading) text. Text can be flowed manually (by the user, one block at a time) or automatically (by PageMaker).
Click the Pointer button on the Tools palette.
Click the text block. . . .
The windowshade tabs will appear. When you place a file that is too long to fit in the page or column, a red arrow will appear on the bottom windowshade tab.