With build lvl 57 i mentioned a difference between the command "option" in tcc and configuration dialog from the pull down menu.
tcmd is opened without any explicit ini file, so it is found in via default search order.
If the tcmd.ini is changed via the "option" command, the real name of the tcmd.ini is in the window title and changes are written to that tcmd.ini.
If the tcmd.ini is changed via the pull down menu, the window title has no file name in it and the tcmd.ini isn't changed at all.
tcmd is opened without any explicit ini file, so it is found in via default search order.
If the tcmd.ini is changed via the "option" command, the real name of the tcmd.ini is in the window title and changes are written to that tcmd.ini.
If the tcmd.ini is changed via the pull down menu, the window title has no file name in it and the tcmd.ini isn't changed at all.