To turn on the Reviewing Pane, go to the Review tab and click on the Reviewing Pane drop-down list. See Figure 8 for an example of what the vertical reviewing pane looks like. The vertical pane will show up on the left side of your Word screen. The horizontal pane will appear at the below your document.
Open the template or a document based on the template whose default settings you want to change. On the Format menu, click Document, and then click the Layout tab. Make any changes that you want, and then click Default.