Adding Leaders or Dots Between Tabs

On a PC

You can add dot leaders between tab stops or choose other formatting options in the Tabs dialog box.

1. Type the text that you want.
2. On the horizontal ruler, set the tab stop that you want.
3. On the Page Layout tab, click the Paragraph Dialog Box Launcher.
4. In the Paragraph dialog box, click Tabs.
5. Under Leader, click the leader option that you want.

When you press ENTER to start a new line, the formatted tab stop is available on the new line.

On a Mac

1. Type the text that you want.
2. Click on Format, Tabs.
3. Type in where you want the tab position to be.
4. Select the alignment (right for most of us).
5. Choose the style.
6. Click Set at the bottom, then OK.

References:
Microsoft Office