[Scenario]

Several different options here. I'll give you a quick example though...

pawn Code:

public OnPlayerKeyStateChange(playerid, newkeys, oldkeys)
{
    if(newkeys & KEY_SECONDARY_ATTACK)
    {
        if(IsPlayerInRangeOfPoint(playerid, 7.0, X, Y, Z))
        {
            SetPlayerPos(playerid, X, Y, Z);
            SetPlayerInterior(playerid, INTERIOR);
        }
        else if(IsPlayerInRangeOfPoint(playerid, 7.0, X, Y, Z))
        {
            SetPlayerPos(playerid, X, Y, Z);
            SetPlayerInterior(playerid, INTERIOR);
        }
    }
    return 1;
}