If you join a server as admin, in the "Event Info" tab there are 4 buttons with a triangle in it.
Clicking on them you skip directly to ( or restart the ) matching session.
In the chat, it is possible to send a private message typing '/' followed by the client's name ( or #race number), followed by the message.
For example, to send a private "Hello" to Adam with race number 7 you can type:
/A Hello
/Adam Hello
/#7 Hello
A server admin can also use the chat to execute commands.
To ban a client, type !eject followed by client's name ( or #race number).
To disqualify a driver during a race, type !black followed by driver's name ( or #race number).