sorry but i didnt understand, what this is made for

/F4  {
  if ( $nick != $me ) { /MSG  ChanServ op $chan $me }
  if ( $me isop # ) { /mode $chan -oooo $me }
}

cause using this exactly sentence if ($nick != $me), it will op u using chanserv, and then, deop urself after this...

by the way, correct me if im wrong, whats the purpose of use $nick, in a F-key?
cause $nick,will not return nothing...

if you use

/F4 {
 echo -a $nick
}

it will only return

• /echo: insufficient parameters

$nick

Returns the nickname of the user associated with an event.

from help file
since the Function keys are not an event, i dont see a reason to use this