[JJB562]

Try This.

pawn Код:

public OnPlayerKeyStateChange(playerid, newkeys, oldkeys)
{
    if(newkeys & 16)
    {
        CallLocalFunction("OnPlayerCommandText", "is", "/enter");
        CallLocalFunction("OnPlayerCommandText", "is", "/exit");
    }
    return 1;
}

EDITED: I edited the script, now try this ONE.