Making something appear
I'm sure this is easy but it has me stumped. I have a layer with a series of buttons that are options to view one or more videos associated with a map. After 120 seconds a Back button appears and I would like this button to
1) Return to the screen with a series of buttons - easy
2) Set the button to disabled - I will add a reset button on this screen to allow re-visiting - easy
3) Un-hide a checkmark that I have created that is currently hidden but sits over each button - can't get the checkmark to appear!!!