Some options can be set by changing your personal ini file or using the ccm set command. Changing the option using your personal ini file will cause the change to be in effect every time you start a session. Changing the option using the ccm set command makes the change at the run-time level (that is, you do not need to restart a session for the change to take effect).
These examples change the cli.text_editor option, the first in your Windows ccm.ini file, and the second, in your UNIX .ccm.ini file. Substitute the appropriate option name and syntax for the option you are changing.