Using the same Data Store on multiple places?

I have a game that teleports you to a place inside the place. You guys know what I am talking about right? Anyways the wiki says places inside places can use the same data store but how would I go about doing this. I cant find any tutorials or anything.

Heres what ive done so far that hasent been working.

I have this data saving script inside the main place.

local DSService = game:GetService("DataStoreService"):GetDataStore("1302851773")

game.Players.PlayerAdded:connect(function(player)
    local uniquekey = "id-" .. player.UserId
    local leaderstats = Instance.new("IntValue", player)
    local Units = Instance.new("IntValue", leaderstats)
    local Crystals = Instance.new("IntValue", leaderstats)

    leaderstats.Name = "leaderstats"
    Units.Name = "Units"
    Units.Parent = leaderstats

    Crystals.Name = "Crystals"
    Crystals.Parent = leaderstats

    local GetSaved = DSService:GetAsync(uniquekey)
    if GetSaved then
        Units.Value = GetSaved[1]
        Crystals.Value = GetSaved[1]
    else
        local NumbersForSaving = {Units.Value, Crystals.Value}
        DSService:SetAsync(uniquekey, NumbersForSaving)
    end
end)

game.Players.PlayerRemoving:connect(function(player)
    local uniquekey = "id-" .. player.UserId
    local Savetable = {player.leaderstats.Units.Value, player.leaderstats.Crystals.Value}
    DSService:GetAsync(uniquekey, Savetable)
end)

And in the second place I have the exact same script. I was hoping it would work but it hasnt been. Anyone have any ideas?

Thank you for your time! :)