Cycle: With this you select 3 different states:

        Shift or Alt: This position contains the names of the macros  to
                      be  executed   when  you  have  shift/alt  pressed
                      together with  
       
        Other: Changes the names of the strings to the following:
               ST: (STart) The macro to be  executed when APlayer starts.
                   Note this is the last thing which is done when APlayer
                   starts.
               ED: (EnD) This macro will be executed when you try to quit
                   APlayer. Note that the only way APlayer can exit then,
                   is by sending a "quit" commando to the Arexx port.
               PB: (PlayButton) This macro is executed when you press the
                   playbutton. Note that it'll  prevent the filerequester
                   from  appearing, which enables  you  to make  your own
                   moduleselector via Arexx.
               PL: (PLay) This  macro is  executed when a module has been
                   successfully recognized and loaded.