I cannot find how to close curve eg elipse. None of hundreds tutorials doesn't show the process. Also, after exporting to the OBJ files has many holes, and patching them is a tedious work.
Thankyou @Kuechmeister , you are the master of Nurbs modelling, your technical perfection is true inspiration!!. Xnurbs is certainly a huge leap forward for Plasticity, which was struggling in the surfacing tool department.👍