Preventing button from changing back to disable states.
I have buttons on the master slide set to disable states. I am forcing the student to listen and go through 10 step in the course without clicking. When they reach step 10, I have a trigger that set a variable called NavDisable to "True". On the master slide, I have triggers for each buttons to change their states back to normal if, NavDisable is "True". When reach step 10 all the button are now change to normal state. The problem I have is that, the button would reset when the student navigate from there.
Anyone has ideas to keep the buttons in normal state after the first visit? I might be over thinking this. Any help? Thank in advance.