There are several ways to start Text Editor from your desktop.
Text Editor can also be started from the command line by typing this command in a Terminal window:
dtpad filename &
The file name is optional.
If the path /usr/dt/bin has not been set in your .cshrc file, then type /usr/dt/bin/dtpad to run Text Editor from the command line.
Choose Close from the File menu or press Alt+F4.
If your keyboard does not have an Alt key, ask your system administrator to identify the corresponding key.