Config:

  This list displays all players,  noteplayers  and  agents  which  have  a
  configuration  window assigned  to them. Pressing one of the entries will
  allow you to change the  for the chosen item.

  Defining a hotkey for i.e. a player config will allow you to  access  and
  change  the  configuration  for the given player at any time, so that you
  won't have to enter the  APlayer  configuration  everytime  you  want  to
  change something.