code: private void setPresets() {
  		TriggerType selectedTrigger = (TriggerType) drpTriggerType.getSelected();
  
  		comboField.setVisible(
  				selectedTrigger != TriggerType.DateField && selectedTrigger != TriggerType.NumberField);
  		dateField.setVisible(selectedTrigger == TriggerType.DateField);
  		numberField.setVisible(selectedTrigger == TriggerType.NumberField);
  
  		// If a group action selected, then target can only be the field (as it is defined in a group)
  		switch ((ControlActionType) drpActionType.getSelected()) {
  			case ENABLEIN_DISABLEIN:
  			case SHOWIN_HIDEIN:
  				drpTargetType.setSelected(TargetType.WFIELD);
  				drpTargetType.setDisabled(true);
  				break;
  			default:
  				drpTargetType.setDisabled(false);
  		}
  	}
docs: Setup the default values for the configuration options.