Mario,
I played with the screen image and cursor movement concept to show a simulation but honestly is it very time consuming to do in CourseLab (I don't have the simulation add-on so maybe this makes it easier/faster).

If you need to show steps in a software program I have some suggestions:
1) Use screen images and place numbers on various areas of the screen. Then include steps in text that correspond to the number on the screen shot.
2) If you really want the motion to show the software steps, you could use a tool like Jing (www.jingproject.com) or Wink (www.debugmode.com/wink) which are both free. You can then output the video to .swf and insert the video into CoursLab.

I've used both methods and both free video capture programs with satisfactory results.