With this organization, the editor maximizes the use of direct keyboard commands for executing common functions and makes these commands as intuitive as possible. Where possible, commands are given mnemonic key assignments and the key layout has been carefully chosen to minimize the possibility of making an irreversible mistake by accidentally hitting the wrong key. In addition, care has been taken to make as much use of the keyboard layout as possible so that learning how to use the editor would be speedy and require little effort. In this regard function keys have been utilized to perform some of the most frequently used commands, and whenever possible specific keys such as <insert>, <help> and <undo> have been given their intuitive meanings.