How do I create a new class in a sub-package in Atelier?

Hi -

I've been trying to create a "sub packaged class" (i.e. TopPackage.SubPackage.Classname) but the current version of the "New Class Wizard" doesn't seem to allow me to do this.

If I try to specify a \project\subdirectory in the "Project" or I try to specify a Package.Subpackage form in the "Package", or I try to specify "Subpackage.Classname" in the "Class Name" they ALL fail to give me a "next" or "finish" button that works (the buttons stay greyed out)

In the  case of the multi-level project, it tells me that the class name can't be empty, in the other two cases, the wizard says I can't use a "/" or "-" or "." in the value

How SHOULD I be able create a subpackage class?

(as a work around, I created the class in Studio, then copied it via Atelier's Server Explorer interface into my project, and that works fine, but clearly isn't the right way to do this)