In the Tags section, select the tag to which you want to apply the trigger.
In the Collection section, select Polled from the Collection Type.
Set the Collection Interval and Collection Offset values. For example, if you want to set a trigger every day, set these values to 24 hours and 8 hours, respectively. Depending on the trigger that you want to set, enter the appropriate VBScript code in the Calculation pane. For examples, refer to Examples of Scheduling Polled Triggers.