Thank you! While Rhino is quite weak on doing fillets, I really like that it’s capable of matching a surface to multiple target edges, so that it’s possible to do some tricks with “Sweep 2 Rails” to achieve a smooth transition between 3 or more fillets that meet together in a star-like configuration.
The viewport mode used in images from “Buttons 45.png” to “Buttons 49.png” could be downloaded from the following topic (simply look for “Bobi X10.ini”):