OK, I last post here ( I hope) but I just had to say how great the Merge command is! It's totally wiped out my biggest frustration with MOI, namely, not being able to do blend surfaces where the edges are split. The Merge function makes it a doddle. I've made a shortcut key and now my surfaces are blending quicker and easier than Rhino's. Yay! No more worrying about selecting edge chains or all that malarkey, just merge 'em together and blend away...

Roger