Closed captions whole project setting

There are many ways to do so.

If you are using a default playbar, it can have a CC button which can be used to turn CC on. By default CC is off when you don't edit that setting. That may be the easiest way: point to that button and explain the learner.

If you don't use a default playbar, you can create a custom button to turn CC On and Off. You could use the shared action explained in detail in this post, which is based on a multistate button:

http://blog.lilybiri.com/1-action-equals-5-toggle-buttons

I had included that action in the Library provided with my presentation about Advanced and Shared actions.

If you really want to offer a clear choice on the first slide, you can do this also in many ways:

• by using a Text Entry Box with two choices: CC On and CC Off
• by using the Radiobuttons interaction with two choices: : CC On and CC Off
• ..

Both scenarios store the choice in a variables, which I'll label 'v_choice'. You will then need a button which triggers a conditional action checking that variable:

IF v_choice is equal to 'CC On'

     Assign cpCmndCC with 1

ELSE

     Assign cpCmndCC with 0

The System Variable cpCmndCC can be set to either 0 or 1 to control the visibility of the Closed Captioning.  Give them a button near the beginning of the course where clicking the button will Assign the system variable accordingly.  I would have CC off by default and ask them if they want to turn it on.