[Using tables]: Datastore 2?

I was reading the Datastore 2 post by Kampfkarren. I am not quite sure how to use this..

I would ask questions on DevFourm about this, but I haven't been accepted yet.

Script:

local Players = game:GetService("Players");
local DataStore2 = require(1936396537);

local Default = {

    -- Level base; 6/28/19
    ["Level"]      = 0;
    ["XP"]         = 0;
    ["RequiredXP"] = 700;

};

Players.PlayerAdded:connect(function(player)
    -- Get and Save the 'Default' table
end)

If anyone could explain how I would Save everything that I have in Default Table? I am yet to come past PlayerAdded function.. I've read the post back and forward about the Tables but it's not getting to me correctly.