Edit Triggers for Existing Result Slides Variables

Hello,

I am hoping someone will reply to this post. Haven't had any luck with finding answers to the questions I post at the forums. :(

Here is what I am trying to do: I am building a "CHALLENGE" course that has 10 questions. I want storyline to automatically "exit" or "route to a specific slide" when the learner has missed 2 questions out of the 10 real time. I don't want even want it to continue with the whole set of remaining questions if he missed 2 already.

I created an "error count" variable to reference the "results.score points" variable that gets automatically created when you insert a result slide. I know that this adjusts the value when the learner gets the correct answer. Is there a way for me to edit how this variable "results.score points" gets adjusted?

Help please!

Thanks!

Donnna