[SAMP_Luke]

pawn Код:

CMD:clearchat(playerid, params[])
{
    for(new i = 0; i < 100; i ++) SendClientMessage(COLOR_GREY, " ");
    return 1;
}

That's a command, in case you would like that also


At the SendClientMessage, add after it a ToAll if you would like to clear it for everyone