The Equation Editor allows you to perform almost all of the functions with the keyboard that you can with the menus and mouse. By mapping keys in the Equation Editor, you can create shortcuts for inserting symbols and performing functions. For example, you could map the integral symbol to the sequence CTRL+I.

The keyboard sequences are mapped to functions in a file named apteqn.cf. To change these mappings, you must change the :keymap section of the appropriate configuration file.

When the Equation Editor starts up, it looks first for a file called apteqn.cf in your application data directory. The application data directory is the directory where your operating system stores user-specific data. This is usually C:\Document and Settings\user_name\Application Data\PTC\Arbortext\Editor.

If it cannot find that file, it uses configuration information (including keymappings) from the apteqn.cf file in the lib subdirectory of Arbortext-path. The apteqn.cf file contains system-wide defaults. Changes to apteqn.cf affect only your Equation Editor sessions. Changes to apteqn.cf affect the keymappings of anyone on the system who does not have their own apteqn.cf file. Unless you are a system administrator, you are likely to be making your changes to the apteqn.cf file in your home directory.