As I understand it the process you describe will only give me particles in the 3D or 2d view. I do get the particles, and I can visualize them both in 2d (slice view) and 3d. I just want to make a cross section through the geological layers by using the tool "Draw a Surface (2d) line". I can view the hydraulic, conductivity, pressure ect. in cross sections by the aforementioned tool but not with stream lines.