Ah, it could actually be that using /mode command works as intended.

In that case, would it be possible to enable a similar behaviour for /(de)op and /(de)voice commands?

It's a bit offtopic, but it reminded me of a ban command - likewise, would it be feasible to implement definable banmasks for use with /ban command? Currently it simply bans nick!*@*.

I usually use the latest version built from CVS.

What you said is indeed a case when third person (using irssi, for example) changes modes, but not when I (i.e. first person, user of weechat) do it (everytime I change multiple modes, I see line by line output and so is it seen from within other clients).

Thus, it appears to me that weechat sends invidual mode changes to server, not grouped. That way or another, it behaves differently when changing modes than irssi (and perhaps other clients).

It would be lovely if modes changes could be "queued", as in irssi, i.e. opping three nicks would result in a "+ooo nick1 nick2 nick3", not three separate mode changes on three lines - which causes something akin flooding, especially when opping lots of people.

I hope I'm not missing anything obvious.