Delete preference setting
Click the Preferences button in the Navigator ( ).
Select the required preference group in the list box at the top.
Select the required preference from the Preferences list. The settings already defined for this preference are displayed in the Active settings field.
If this field is empty, it may be because the options to show different levels are not checked (see Display different levels).
- Select the setting(s) you want to delete and click Delete at the bottom of the window. All selected settings are removed from the list straightaway.