Setting interval options for date and time picker Using M3 Mobility Core Toolbox, select System configuration > Dialog design. Select a dialog and proceed to the Dialog layout tab. On the Dialog layout tab, select a group. Add or update the date. Click the ellipsis button to display Control properties. Select a value from Interval list and click Close. Note: Interval option is clear by default. When you clear the Interval option, the values in the dropdown list is not automatically cleared. Select Dialog to save the changes. Click Yes.