Use the Tabs dialog box to achieve more precise tab positions and to insert a specific character (leader) before the tab.
On the Home tab, in the Paragraph group, click the Paragraph dialog box launcher, and then click Tabs.
In the Tab stop position, enter the position (measurement) on the ruler where you want to set the tab stop.
Under Alignment, choose Left, Center, Right, Decimal or Bar.
Under Leader, choose 1 None, 2 dots, 3 dashes or 4 underline to set-in the case of options 2, 3, and 4-a series of characters that links, for example, a section title with a page number.
