File transfer Refresh list button

[ceut2k4]

Hello, I have switched from TightVNC to UltraVNC recently. I use a lot the file transfer between the server and the host. But when I copy some files from Windows, there is no button to refresh the list of folders/files in the transfer dialog box to show the newly added files, or removed one, as I was used to use in TightVNC.

Is there a way to refresh the file list ? (I have tried F5 and CTRL+R, no menu with the right-mouse click.). Or maybe could you add the button ?

Thanks !