Keyboard Control
  
  You can run ten locos from the keyboard or four with the keypad.
  The "Selected" loco is highlighted and you can select a different
  loco with the "tab" or keypad "." keys or a mouse click within the
  box (but not on a control.) The number keys (0-8) will turn
  functions on and off for the selected loco. Double press the key as
  you would the mouse button to make functions flash as defined in
  the loco setup dialog. This may go against User interface
  guidelines for other programs, but I find it useful.
  Most functions are duplicated for accessories by using option-key
  instead of the key only. i.e. Turn on accessory function 1 with
  option-1.
  
  The extended keyboard and original Mac keyboard are the only two
  tested as of yet, so beware the Plus keyboard...
  
  *Emergency stop of all locos is Space, Return, or Enter.
  *Space bar will kill power to the layout by terminating data out
  the serial port, then it sets all speeds to zero for a safe restart.
  *Return and Enter sends emergency stop commands, then sets all
  speeds to zero. Followed by idle packets.
  
  Direction for the selected loco is ">" key and "<" key (no shift
  needed), or right arrow and left arrow.
  Speed of the selected loco is "-" and "+" (no shift necessary) and
  up and down arrows.
  Functions 0 thru 8 of the selected loco are the 0 thru 8 keys on
  the keyboard and functions 0 thru 6 of the selected loco are the 0
  thru 6 keys on the keypad. I needed the 7 and 8 keys for speed
  control, sorry.
  Change "selected" loco by using tab or "." on keypad.
  Decrease and Increase the channel number of the selected loco with
  "[" or "]". This is useful for finding the loco channel number if
  you don't know it. Set up the loco as usual, but start at channel
  1. Give it some speed (half would be my choice) and then give it a
  few seconds on each channel number. The program does not send
  packets to locos not on screen, so there is no danger of a new loco
  being placed on the layout running away because of an old command
  being remembered for one of the addresses you tried.
  
  Speed of the first loco can be increased and decreased with the "q"
  and "a" keys, or the "clear" and "7" key on the keypad. Continue
  pressing the "a" or "7" key to reverse and go faster in reverse.
  Speed of the second loco is controlled with the "w" and "s" keys or
  the "=" and "8" keys, third loco with the "e" and "d" keys or "/"
  and "9" keys, etc. Up to ten locos can be controlled with the
  keyboard, only the first four with the keypad. If you have a
  detachable keypad, you have walk around control!!! A trick to run a
  bunch of locos with the four keypad controls is to MU the first
  four locos to be defined on screen with some other locos.  This
  needs some work as the order of keyboard control is not based on
  the screen location, but rather when the locomotive was first
  defined. Pull down the Loco menu to see the creation order of the
  locos. There is a small number at the top of each slider control to
  tell you which locomotive it is for keyboard control.
  You may notice the slider control does not update immediately on
  each keyboard key press. This is to give faster response on a Mac
  Plus, which draws the control rather slowly. You can also turn off
  the continuous info window display to gain rather a lot of speed
  for loco control.