when I use the feature ( fit two pages by side within the window ) the pages sheet on window is not running by the rate of two, the number are changing by 1-2 ,3-4------etc but the run rate should be 1,3,5,7,9,-------or (n-1) for even number and and (n) for odd number do improve this code go on keep it up

only when I use right and left arrow to move forward and backward respectively