-n
While ftptop is running, hit the 'q' key to quit. The 't' key toggles between display modes. Currently there are two display modes: normal and transfer speed modes.
ProFTPD is written and maintained by a number of people, full credits can be found on http://www.proftpd.org/credits.html
Full documentation on ProFTPD, including configuration and FAQs, is available at http://www.proftpd.org/
For help/support, try the ProFTPD mailing lists, detailed on http://www.proftpd.org/lists.html
Report bugs at http://bugs.proftpd.org/