/lwc - The LWC command for everything, however aliases are available to make some commands shorter. Type /lwc in-game for more detailed help.
/cprivate - The alias of /lwc create private (or /lwc -c private), it creates a private protection.
/cpassword <password> - The alias of /lwc create password <password>, it creates a passworded protection.
/cpublic - The alias of /lwc create public, it creates a public protection
/cremove - Allows you to remove a protection you own (or if you're an LWC admin, any protection) - you must click on the protection after using /cremove in order to remove it.