Iftop - configuration

[Robert Szczepkowski]

Hallo

I find 
http://www.freebsd.org/cgi/man.cgi?query=iftop&apropos=0&sektion=8&manpath=FreeBSD+8.1-RELEASE+and+Ports&format=html

revelation manual with examples. This software is revelation for me, but 
all the time, when I start this i must press key: "t" and "s"

What I must write to */.iftoprc*

*to set to work the same at startup? *

Thank You, Regards

Robert