Transferring Models between places?

Yes it is very possible. The best way to accomplish this is to create a table of properties to save. Remember that you cannot save any type of userdata either, so properties like CFrame and BrickColor will have to be saved a different way.

Here is some example code

local function PartToTable(Part)
    local Table = {} -- table that will hold all the properties
    local NormalProperties = {"Transparency", "CanCollide"} -- Non userdata properties of a part. I just added a couple

    for i,v in pairs(NormalProperties) -- loop through the basic properties
        Table[v] = Part[v] -- Add to table
    end

    -- Custom properties

    Table["CFrame"] = {Part.CFrame:components()}
    Table["BrickColor"] = Part.BrickColor.Name
    return Table
end

local function TableToPart(Table)
    local Part = Instance.new("Part")

    for i,v in pairs(Table) do
        Part[i] = v -- set the basic properties
    end

    Part.CFrame = unpack(Table["CFrame"]) -- set the userdata properties
    Part.BrickColor = BrickColor.new(Table["BrickColor"])'

    return Part
end

Let me know if you have any questions about the example code I provided.

Try to get this sample

http://www.roblox.com/Create-Place-Lobby-place?id=146051778 http://www.roblox.com/Create-Place-Zone-place?id=146059799

And edit it..... i tried it then it works......

finished product: http://www.roblox.com/Build-your-own-Universe-Finished-Game-place?id=154470806