2 questions regarding timing

  1. I would like to WAIT to be displayed on the screen while the whole definitions is cimputing (up to 30 sec.).
    I was hoping that 0 list length before stuff is generated will give me desired result but the whole thing is dead before end result is computed. Not sure what trick to be done here so WAIT is displayed during the operation.
  2. How to make DONE lasting only few seconds?