There's just one form of Alias. Type the word "alias", followed by
the shortcut you want to create, followed by the command and its arguments which
you're creating a shortcut for.
You can create as many aliases as you like. To modify an existing alias,
use the same syntax: if you use the same shortcut, you'll overwrite the old
alias. Your existing aliases are displayed in a tab inside the player applet.
Deleting an alias requires your mouse. In the player applet, double-click the
alias you want to remove.