Triggers
A trigger is an event that causes an action within a field on a template. For example, a picklist appears when a data entry (edit) field is accessed, or another template opens when a button is selected. Some of the actions can be set up to take place only if certain predefined conditions are met. Triggers may use variables, functions, or macro functions.
Template triggers are the most integral and vital element of Template Editor. Templates can be used without triggers, but using triggers improves the efficiency of templates. You are encouraged to use triggers as much as possible.