In the Standard Parameters tab of the "Serviceability Configurations" dialog box, you can specify the factors and limit values that apply to the serviceability limit state design according to a specific standard. The standard and National Annex are mentioned in the title bar.
The parameters of the selected National Annex are preset in the "Value" column. To change the value, click in the cell and enter the appropriate value.
You can use the button on the bottom of the dialog box to reset the parameters to the default values.