None......... List #include file names for the .c file in alphabetic order.
Opt.......... List #include file names for the .c file in first-found order
              (THINK6 or newer).
Cmd.......... List all text files under the Apple #include folder in
              alphabetic order.
Cntrl........ List all text files under the project folder in alphabetic
              order.
Shift........ List #include file names for the whole project in alphabetic
              order (THINK6 or newer).
Shift Opt.... List all text files included in the current project in
              alphabetic order (THINK6 or newer).
Shift Cmd.... List all #include files which CMaster can find in the text file.
Opt Cmd...... [User settable by setting STR# 1030X, ‘X’ is the THINK Version.]
Opt Cntrl.... List all text files under the C headers folder in alphabetic
              order.
Opt Shift Cmd List all text files under the Mac #includes folder in
              alphabetic order.