Wish: Drag and Drop different file formats

I apologize if it has been mentioned, but I couldn’t find anything.

Sometimes I want to open files like .step or .3ds in Rhino. Currently I go to rhino and select the open dialog from the menu.

But it would be great if I could just drag and drop the files directly from the finder into the rhino icon in the dock.
Maybe I could even drop it into the open rhino window.

This is how Windows Rhino works, hopefully it will also make it into the Mac version someday… --Mitch