To create a new line of bulleted text in the Text pane, press Enter. To indent a line in the Text pane, select the line that you want to indent, and then under SmartArt Tools, on the Design tab, click Demote. To negatively indent a line, click Promote. You can also press Tab to indent or Shift+Tab to negatively indent from within the Text pane.
If you don't see the SmartArt Tools or Design tabs, double-click the SmartArt graphic.