Can't import AI files into Storyboard Pro

This link says Storyboard Pro 6 is able to import a variety of image types: ai, .pdf, .tvg, .pal, .scan, .sgi, . tga, .yuv, .omf, .psd, .png, .jpg, .jpeg, .bmp and .tif.\

But when I go to import .AI files, it doesn’t seem to be an option (only types of bitmap files from the list above).

Is there a way to import .AI files or has that option been removed from this version?

If you right-click in the library window and choose the option “import files” it should work.