[Paraview] Tracing a particle's trajectory over time in paraview?

[Ivan Guajana]

Hi,
	I am looking for a way to draw a particle's trajectory over time. I  
have an Ensight Gold multi-step data-set containing
a bunch of particles and their positions at each time step. I would  
like to extract the actual paths out of it. It shouldn't
be complicated, but I couldn't find a way to do it in paraview. Is it  
possible?

Thanks in advance,

Ivan Guajana