Graying out button when lesson is visited....

Hi Carrie - 

Couple of things. There is a built-in state called Disabled that will both show a disabled visual state and prevent clicking on the button. That's probably the state you want to use to disable navigation.

The other behavior with buttons on a Master slide is they are kind of "dumb", meaning they don't know what to do and won't remember state. To get around this, you'll need to use triggers and variables. 

Create a variable for each section (s1complete, s2complete, s3complete) you can make these whatever you want but it could be easier to use a true false variable with a default of false.

At the end of each section (or wherever you want to put it) use a trigger when the slide loads to change the correlating variable to true. 

Now back to your master slide. For each button, create a trigger:

When the timeline starts, change state of buttonX to disabled if sxComplete is true.

If you have 4 buttons, you'll have 4 triggers and 4 variables. Now when the master slide loads, it'll be "smart" and will know what to do! :)

Thanks, Steve. Never figured this would be a manual process?? I had tried to change the state of the button on the lesson slide, and, of course, couldn't do that. Variables should work just fine.

FYI, just want the button grayed out but not disabled, but I can see how that would work.

As always, heroes to the rescue! ;-)

Worked...thanks again, Steve!