Make available somecontent ONLY after you have finished the course

I would set up another scene and have a button on the last slide that comes up only after everything you want done is done, that links to the bonus scene. Should work don't see why it wouldn't. Only thing is after you have everything in place the last thing you want to do is go and delete the bonus scene slides from the menu if your using one.

Thanks Kevin for your replay, I just don't understand this:

"Only thing is after you have everything in place the last thing you want to do is go and delete the bonus scene slides from the menu if your using one."

Thanks,

Alessio