"Linked paging": enhanced content paging

Scenario: pressing CTRL+2 in an open window opens another window into the same member. The PageUp and PageDown keys page in the window where the cursor's located, not in any other window. Proposed enhancement: an option that would page across multiple windows (into the same member) simultaneously, thereby increasing the effective size of the window and promoting easier viewing of the contents. Paging in one window would cause the contents in other windows to page as well. Benefit: the user would be able to scan more content: eyes scan 100x faster than page up/page down functions. Details: for a monitor showing 60 lines, the second window with "linked paging" would show lines 61-120. An option would control the number of lines to page, thereby allowing the user to see the contents of the primary window be replaced by the contents of the second window (lines 1-60 + 61-120, page, 61-120 + 121-180, and so on). An alternate option is "book" mode, where the view would be 1-60 + 61-120, page, 121-180+181-240, and so on. Consideration: it's possible to rotate a monitor 90° and provide a roughly comparable experience to the user. However, a side-by-side display (as compared to a "tall" display), similar to the layout of most books, is easier to scan. The vertical orientation wastes considerable space for most languages, and even for languages without limitations on line length, very long lines are problematic.