[leonardo1434]

1 - use this function https://sampwiki.blast.hk/wiki/Automatic_Gates

2 -use this tutorial pretty simple https://sampforum.blast.hk/showthread.php?tid=300316

3 - i don't get what you mean...

4 - Here is the CMD to get all.

pawn Код:

CMD:getall(playerid,params[])
{
    if(PlayerInfo[playerid][pAdmin] >= 7)
    {
        new Float:x,Float:y,Float:z, interior = GetPlayerInterior(playerid);
        GetPlayerPos(playerid,x,y,z);
        new pCount;
        for(new i = 0; i < MAX_PLAYERS; i++)
            {
                    if(!IsPlayerConnected(i) || i == playerid) continue;
                    pCount++;
                    PlayerPlaySound(i,1057,0.0,0.0,0.0);
                    SetPlayerPos(i,x+(playerid/4)+1,y+(playerid/4),z);
                    SetPlayerInterior(i,interior);
            }
        if(pCount == 0) return SendClientMessage(playerid,COLOR_RED,"No players online!");
        new string[128];
        format(string,sizeof(string),"|| Administrator %s has teleported all players! ||", Name(playerid));
        SendClientMessageToAll(COLOR_LIGHTBLUE, string);
    }
    else return SendClientMessage(playerid,COLOR_RED,"You need to be level 7 to use that command!");
    return 1;
}

5 - Here is the function to make Icons https://sampwiki.blast.hk/wiki/SetPlayerMapIcon