quiz/lightbox completion

ParnazMaboud105​: For future reference, a variable maintains its value until a trigger changes it. A slide's revisiting setting ("Reset to Initial State" or "Resume saved state") doesn't impact the value at all. 

One common issue with variables: Folks often use "when variable changes" in a trigger. But that only works if the variable changes on the same slide as that trigger. Instead, as shown in your "Trigger feilds v.2.png," a trigger often needs a different "when" plus conditions that check the values in the appropriate variables. 

Also note that a trigger that runs "when the timeline starts on this slide" will run every time the user visits that slide. So a trigger with that "when" plus variable-checking conditions is a great way to make something happen when a user returns to a slide.