Click item  on the alias menu. You receive the following prompt:
Modify an alias
Enter the alias name:
Enter the name of the alias that you want to modify. If the named alias does not exist in the alias file, a message displays:
Alias does not exist
and you are returned to the alias menu. Otherwise, you see the current working directory and are asked for a new one.
Press Enter to leave the working directory unchanged, or enter the name of a different directory.
After you enter a directory, you see the command line as it currently exists in the alias file, and are asked for a new command
line. Press Enter to leave the entry unchanged, or enter a new command line. You are then returned to the alias menu.