[Kaliber]

You can do this, by using an big Array like this:

PHP Code:

enum e_Entrance {
    Float:a_x, //Entrance x
    Float:a_y, //Entrance y
    Float:a_z, //Entrance z
    Float:e_x, //Exit point x
    Float:e_y, //Exit point y
    Float:e_z, //Exit point z
    e_pick,
    e_int,
    e_world,
    e_text[32]
};
stock const Interiors[][e_Entrance] = {
    {0.0,0.0,3.0, 50.0,0.0,0.0, 1239, 0, 0, "Test Interior"}
};
//Can use this with /enter or KeyCode
stock EnterInterior(playerid)
{
    for(new i; i<sizeof(Interiors); i++) {
        if(!IsPlayerInRangeOfPoint(playerid,2.0,Interiors[i][a_x],Interiors[i][a_y],Interiors[i][a_z])) continue;
        SetPlayerPos(playerid,Interiors[i][e_x],Interiors[i][e_y],Interiors[i][e_z]);
        SetPlayerInterior(playerid,Interiors[i][e_int]);
        SetPlayerVirtualWorld(playerid,Interiors[i][e_world]);
        GameTextForPlayer(playerid,Interiors[i][e_text],5000,5);
        return 1;
    }
    return 0;
}
//OnGameModeInit
for(new i; i<sizeof(Interiors); i++) {
    AddStaticPickup(Interiors[i][e_pick],23,Interiors[i][a_x],Interiors[i][a_y],Interiors[i][a_z]);
    AddStaticPickup(Interiors[i][e_pick],23,Interiors[i][e_x],Interiors[i][e_y],Interiors[i][e_z]);
} 


I think..you should understand the thing behind