Thank you Edson. Thanks for the screenshots too. That helps a lot. If I can see it I can do it.

Beautiful. That worked fine.

Hello everyone. I am a relatively new Sketchup user using a MAC with OSX 10.58 and Sketchup 7.1.6859. I openly admit to be totally lost as to how to install the Bezier Curve plugin. Reading all of this thread has me totally lost. I am running some tools I added for generating CNC files for a foam cutting machine. I am pretty sure I installed those a long time ago as .rb files. Would someone please tell me the easiest way to get a spline tool installed? I need to create some airfoil designs. Thank you very much.