List of all commands

[Sphinx]

So far i know:
/go
/w and /whipser
/info
/countdown

What else is there?
Some commands that i would like or they might exist already.

Add a nation to your nation chat.
/add <nationname>

Offer to be patron.
/offer <username> or /patron <username>

Show all commands.
/help or /cmd or /list