[iFarbod]

I Don't like using TAB For showing scoreboard.
Maybe changing it to another key. or something like this:

pawn Code:

native ShowScoreBoardForPlayer(playerid);
native HideScoreBoardForPlayer(playerid);
native IsScoreBoardVisibleForPlayer(playerid);

So we can easily control it like this:

Using /scoreboard to show or hide. (If shown, hide. If Hiden, Show it)

pawn Code:

CMD:scoreboard(playerid, params)
{
    (!IsScoreBoardVisibleForPlayer(playerid)) ? ShowScoreBoardForPlayer(playerid) : HideScoreBoardForPlayer(playerid);
    return 1;
}