Specify the duration of stay, that is the number of days for which visa is issued,
Open the profile of the required visa.
On the Information tab, in the Duration group, click Create. The New duration of stay window appears:
In the New duration of stay window, specify the following information:
Name: enter the name of the period of duration into the box.
Use by default: select the check box in order to apply the duration of stay as default.
Description: describe the duration of stay.
Click Save. The new duration period is saved and stored in the common directory of visa periods of duration.