toribio

//se n�o tiver o public OnPlayerKeyStateChange, coloque isso:
public OnPlayerKeyStateChange(playerid, newkeys, oldkeys)
{
    if(newkeys == 16 && GetPlayerState(playerid) == PLAYER_STATE_ONFOOT)
    {
        OnPlayerCommandText(playerid, "/entrar");
        OnPlayerCommandText(playerid, "/sair");
    }
    return 1;
}

//se tiver o public... apenas coloque isso dentor dele:
    if(newkeys == 16 && GetPlayerState(playerid) == PLAYER_STATE_ONFOOT)
    {
        OnPlayerCommandText(playerid, "/entrar");
        OnPlayerCommandText(playerid, "/sair");
    }