scorm and keystroke control

I'm using the Lectora 2006 intnl (demo version).The keys are the "Arrows": left, right, up and down and the action are: Go to the previous page, go to the next page and modify some variables.They work well in production environment and also if the tile is publised as html, but they do not work when I upload the title as scorm (I tested a couple of LMS with the same result).My problem is the customer do not want their students use the mouse and everything became much more complex to me because I had to create a title navigation just using keys.Thank youPiero