Tab leaders–the lines of filler characters in printed lists and tables of contents that connect the aligned content on one side to the aligned content on the other–are easily obtainable in QuarkXPress.
After setting up and formatting the list, bring up the Tabs pane of the Paragraph Attributes dialog box (Mac: CMD-SHIFT‑T, Win: CTRL-SHIFT‑T, or Menu: Style>Tabs…). Select the tab you want to implement and enter the leader character in the “Fill Character” box.
If the tab leaders seem too dense, enter a single space after your fill character. QuarkXPress allows up to two characters in the “Fill Character” box.