Version center is the area where white space is removed from text content.

In word, click File-Page Setup-[Margins Tab]-(top, bottom, left, right) which is the blank area, including the header and footer.

Example: Set the top and bottom to 3.7 and 3; Left and right 3 and 3 (but because of binding, the left side can be wider than the right side and can be set to 3.5 and 2.5)

Remember to set the paper size in [Paper Label] to A4.