Hope this helps:

Syntax: HOP #RoomName ADD nick

HOP #RoomName DEL {nick | entry-num | list}

HOP #RoomName LIST [mask | list]

HOP #RoomName CLEAR

Maintains the HOP (HalfOP) list for a room. The HOP

list gives users the right to be auto-halfopped on your

room.

The HOP ADD command adds the given nickname to the

HOP list.

The HOP DEL command removes the given nick from the

HOP list. If a list of entry numbers is given, those

entries are deleted. (See the example for LIST below.)

The HOP LIST command displays the HOP list. If

a wildcard mask is given, only those entries matching the

mask are displayed. If a list of entry numbers is given,

only those entries are shown; for example:

HOP #RoomName LIST 2-5,7-9

Lists HOP entries numbered 2 through 5 and

7 through 9.

The HOP CLEAR command clears all entries of the

HOP list.

The HOP ADD, HOP DEL and HOP LIST commands are

limited to AOPs or above, while the HOP CLEAR command

can only be used by the room founder.

This command may have been disabled for your room, and

in that case you need to use the access list. See

/msg ChanServ HELP ACCESS for information about the access list,

and /msg ChanServ HELP SET XOP to know how to toggle between

the access list and xOP list systems.

To remove them you would type /chanserv hop #YourRoomName del TheirNickName