* click '''Increase Weight''' http[[File://www.multicharts.com/img/wiki/toolbar/29_ThickExpand_Weight.png ]] or '''Decrease Weight''' http[[File://www.multicharts.com/img/wiki/toolbar/30_ThinDecrease_Weight.png ]] icon on the '''Control''' toolbar, or
* select '''Format''' in the main menu and click '''Increase Weight''' or '''Decrease Weight'''.