I would like to know how to do the following or at least the best way to get started.

I want a screen of tasks the user has to perform. The user clicks on a sprite/button and go to that particular layout to do the task. When the task has been completed, they are returned to the original screen of tasks with the task they just performed greyed out and no longer selectable.

Thank you in advance,

Terrific example!

Well, each particular question would be different. But an example would be:

Who Was A U.S. President?

Thomas Jefferson, George Washington, Nathan Hale, Patrick Henry

Here there would be more than 1 correct answer.

In the Simple Quiz Game example, can it be changed to allow more than one correct answer per question?

Thank you so much for taking the time to do this. These examples are excellent.

I'm just looking for an example to look at, so either way is fine with me.

How would I do this in the free Construct 2 version, where I cannot use Families?

Much appreciated.

I am looking for a list of what is available in the free version as opposed to the licensed versions. Are there certain system expressions which have been disabled or removed? I am looking for the Choose command but cannot find it...

How do I make a group of sprites which start off invisible, visible one at a time?

How do I associate a value to a particular animation frame, such as assigning points when a particular frame in the animation is clicked?

What I'm looking to do is have a timer that counts down to zero every time a level begins, but I want the starting number to vary each time the level is played. Is there an example of this somewhere?