I am a feflow 5.4 user. I see in my reference manual some very slick looking 3D diagrams showing pathlines as nice thick tubular paths in section 25 (e.g. figure 25.6 in "3d anisotropy and patterns of groundwater whirls"). Can someone tell me how to produce such diagrams, is it done in Feflow explorer or directly in Feflow?  I'm trying to improve on the presentation of my results.

Thanks
Martin