Hi Will, the problem with showing the mesher first is that some file formats are not mesh formats, like .igs, or .stp for example.

So the mesh dialog is not supposed to show for those.

I kind of need to know what file format is going to be used first, before I know whether the mesh dialog is actually going to be needed or not.

I'm pretty sure that Rhino works in the same way, since it also can export to some formats that are mesh formats and some that are NURBS formats.

But Rhino does have a "Mesh" command which you can run which constructs a mesh object in the current file that does not involve saving to a file at all... Maybe that is what you are remembering from Rhino? MoI does not currently work with mesh objects directly in the model, so that is not an easy thing to add into MoI right now.

- Michael