question about draw



Hello,
 Is there an option to draw which keeps a plot open and adds points one 
by one?  I want to generate real time orbits of solutions to 
differential equations (in R^3).  At present, I generate the entire 
lists of points and then plot them.  For long lists of points, this 
shows the final orbits, but I would like to see how they are generated, 
piece by piece. 

Thanks,
 -sen