This worked very well and saved me hours. Why The Mathworks does not fix movefile I do not understand. Thanks also for providing the compiled MEX files on your personal website. You saved me quite a bit of effort.
Sorry for the delay -- somehow I missed your question.
Yes, you can show only folders by entering '^' as the regular expression filter. That will cause the program to display only files that begin with nothing. Since no file has no name and folders are exempt from RE filtering (by default), only folders will be displayed.
I realize that's a bit of a hack so I will consider adding such a feature.