Can't open SOS unless it is in character's backpack, but should be reachable in a container.

[Lexshmyr]

Opening an SOS to get the gump is forced to have the SOS in the player's backpack. Nearby containers should be acceptable sources for opening the gump.
Needs change to code for location and cliloc message ("I can't reach that." 1019045). This matches the production message when the target cannot be reached.

These changes happen in the OnDoubleClick method of Scripts/Items/Consumables/SOS.cs

    public override void OnDoubleClick(Mobile from)
    {
        if (from.InRange(GetWorldLocation(), 2) && Movable)
        {
            MessageEntry entry;

            if (m_MessageIndex >= 0 && m_MessageIndex < MessageEntry.Entries.Length)
                entry = MessageEntry.Entries[m_MessageIndex];
            else
                entry = MessageEntry.Entries[m_MessageIndex = Utility.Random(MessageEntry.Entries.Length)];

            from.CloseGump(typeof(MessageGump));
            from.SendGump(new MessageGump(entry, m_TargetMap, m_TargetLocation));
        }
        else
        {
            from.SendLocalizedMessage(1019045); // I can't reach that.
        }
    }