TIP: Master Toggling On and Off

Have you ever wanted an on/off button to use throughout your course? 

I recently saw a question about toggling a button. That's easy to do with built-in functionality: If an object has a Normal state and a Selected state, it will automatically switch between those states when clicked—without the need for triggers. 

And you could use a trigger on that button to toggle between true and false in a T/F variable.

To make one toggling button available throughout a course, it needs to be on the Master slide. That requires a few more triggers. See the attached demo for how to make it work.