Once you have added a tabstop to the ruler, you can set the leader character used for a tab-stop.
- Position the mouse cursor over the relevant tab-stop in the ruler (at the top of the window).
- Press the right mouse button to display the tab menu and choose Tab Options...
- To add leader dots to your tab-stop, type a single ‘.’ (period) into the Leader Character text box.
You can type any single character into this box for use as a tab leader.