In this dialog you can configure the list styles. You can use these styles to create customized multilevel lists in the Content editor. To edit the list styles:
click the button to display the project settings and then click Formatting styles in the appeared dialog;
go to the Options menu and select the Project settings menu option.
List styles
Use this list to select a style you wish to customize.
The preview area displays numbering style of all levels at once. Currently selected level is colored with black. Also, you can click a level you want to customize.