Hi! can anyone tell me the way to add ribs in hypermesh? my case is that I have created one midmesh of an expansion tank and the next step for me is to try to add some ribs inside to find out the best option but now I have difficulty connecting ribs and the outer surface. I have used exend and creat surface then mesh it, they both do not work very well because the new mesh can not be connected, their edges are all red. is there some way to do this? thank you…