Hi!Michael,I quite agreeMoI is not really focused on that type of "fill things in patch by patch" style of NURBS modeling because it's a rather advanced and finicky area.But usually when you want things to be continuous it is better to make one large extended surface instead of separate pieces. Either that or the other alternative is to do that type of model as a sub-d model and convert it into continuous surfaces using the Subd import converter.It is very necessary for beginners to supplement the problem, can you do a tutorial or recommended tutorial on expanding the surface or sub-d method, I find many on the Internet are fast forward, novice completely unable to understand and learn this kind of supplement skills.I think moi is very good, mainly the problem of multilateral complement and surface continuity, which has been bothering me.