On the pages Preferences and System settings, each value has a default value. You can load the default values of all fields from all tabs together to undo all changes.
The reset is not executed immediately by clicking on the button Load default values, but this page of the same name is loaded, on which you can review all changes in advance. Changed settings are listed under the title of the tab from which they are from. The name of the setting is followed by the default value in words, with the different current value to the right.
To reset a value, the checkbox next to the default value must be checked. To retain a changed value, remove the mark. You can use the buttons above the comparison to remove or set the checkmarks together. Select all is the initial state, Select none is equivalent to Cancel. Click Submit to save the reset of the marked default values. After submitting, the number of reset values is displayed in a green info bar.
Figure: Example of a comparison of default values and current values