- Test Equation: specify the name of the variable, the value to compare to (or the name of another variable whose value you wish to compare to), and what comparison to make. "Existing" means that the variable has been defined.
- Maximum Times: the maximum number of times that this Trigger will fire before it ignores all future events. The counter resets when the page is reloaded. If set to a negative value, it will fire an unlimited number of times.