Library /sys$common/syshlp/pca$help.hlb SET, KEY, Examples  *Conan The Librarian (sorry for the slow response - running on an old VAX)

  PCAC> SET KEY/STATE=BLUE

      The SET KEY command sets the current state to BLUE. After
      entering this command, when you press a keypad key with a BLUE
      definition, that definition is executed even if you do not
      press the PF4 key first. (The PF4 key is the PCA-defined BLUE
      key.)