[zack3021]

You can use ShowPlayerMarkers.

Click here to see it

Here is a code i just made:

pawn Код:

public OnPlayerCommandText(playerid, cmdtext[])
{
    if (strcmp("/hide", cmdtext, true, 5) == 0)
    {
        ShowPlayerMarkers(0);
        return 1;
    }
    return 0;
}

Not Tested but it should work.

The reason i use strcmp is because it doesn't have params, so the player who type it would be hid on the map.