Ettv master help

http://ettv.anime.net/documentation.html

Hmm, where to put those cvars?

ettv_sv_maxslaves (default 0, no slave connections allowed)
Number of ettv slaves allowed to connect.
Note: Slave slots are always reserved, like private slots.
ettv_password (default "", no slave connections allowed)
Password for ettv slaves.
Must be set, or no slaves will be able to connect!
b_ettv_flags (default 1)
1 = prevent slaves from being callvote kicked
2 = grant shoutcaster status to slaves
values can be added together, eg 3 for both features.

And, what value would you suggest as ettv_sv_maxslaves for a 14 slots server?
Thanks :)

EDIT: wtf is a slave, besides old roman's ones?