PTT is a neat little utility to allow you to easily take advantage of the terminal extras available with the VT100 and PT100 terminals. PTT accepts a two character command code to tell it what to do. The command line format is as follows: PTT [#] [::][/][\....] where is defined as follows: BL Blink DL Delete Line BO Bold CL Clear Screen UN Underscore TP Clear to top of screen RV Reverse Video BT Clear to bottom L1 Light LED L1 EL Clear to end of line L2 Light LED L2 BL Clear to beginning of line L3 Light LED L3 CT Clear tabs ST Set tab here CC Clear current tab here L4 Light LED L4 OF Turn off all specials NO Null command SI normal size characters SC Save cursor RC Restore cursor UP Move cursor up DO Move cursor down SW Set white back. SB Set black background SH 80. char./line LO 132. char./line GR Enable graphics NG Disable graphics DB Double wide and double high characters (2 lines) IL Insert a line of blanks WI Double wide characters SR:: set scrolling region DC:<#>:0 Delete the # of characters starting here Let Steve know if there's something else you'd like to see added. Note- PTT is not all that intelligent. I can't guarentee that will not blow-up on you. Be especially careful that you "clean up" after doing some involved terminal I/O. (You may leave parts of the screen set in a funny state.) Anything is legal as a message except: !,\,and escape sequences. PTT will allow you to clear, move cursor, and send messages to ADM-3A's.