Use a custom image for cursor

cool.  how does it work?  Are you able to share the Storyline file?

If you inspect the demo, you'll see the following JavaScript is being executed when rocket button is pressed:

 var elementToChange = document.getElementsByTagName("body")[0];
 elementToChange.style.cursor = "url('http://www.nuno-cardoso.pt/articulate/change_cursor/cursors/rocket.ico'), auto";