My data works, but I want to be able to add new Values and save them aswell. How will I do this?

My script is

--// Services \\--
local players = game:GetService("Players");
local DataStoreService = game:GetService("DataStoreService");

--// Global Values \\--
PlayerData = {};
_G["Information"] = {
    Version = 1.03,
    ServerCreated = os.time(),
};
_G["JackpotData"] = {
    JackpotTimer = 100, 
};

--// DataTypes \\--
local MetaData = {};
MetaData.__index = MetaData
local GameData = DataStoreService:GetDataStore("KudoE_Data_15")

--// PresetTables \\--
local ValueSets = {
    Kudos = 0,
    Level = 0,
    XPNeeded = 100,
    XP = 0,
    Cases = 1,
    RebirthMultiplyer = 1,
    CostTix = 1,
    SuperKudos = 0, 
    FirstTime = 0,
    OG = {
        Title = "OG",
        Have = false,
        Color = 170, 0, 127,
    },
    Release = {
        Title = "Release",
        Have = false,
        Color = 255, 0, 0,
    },
    Common = {
        Title = "Common",
        Have = false,
        Color = 85, 255, 0,
    },
    Uncommon = {
        Title = "Uncommon",
        Have = false,
        Color = 85, 255, 255,
    },
    Cherry = {
        Title = "Cherry",
        Have = false,
        Color = 255, 0, 255
    },
    EssenceAmount = 0,
    Music1 = {
        Name = "BTS - Dynamite",
        Value = 500000,
        Own = false,
        Id = 5597073660,
    },  
    Music2 = {
        Name = "Come and Go - Juice WRLD",
        Value = 780000,
        Own = false,
        Id = 5341266037,
    },
    Music3 = {
        Name = "Empty (feat. BoyinaBand and Jaiden)",
        Value = 750000,
        Own = false,
        Id = 3364510397,
    },
    Music4 = {
        Name = "Minecraft OST - Pigstep (FlyxTheKid Remix)",
        Value = 1400000,
        Own = false,
        Id = 5763169040,
    },
    Music5 = {
        Name = "OOFER GANG - LIL PUMP",
        Value = 1650000,
        Own = false,
        Id = 1327560343,
    },
    Music6 = {
        Name = "XXXTentacion - Jocelyn Flores",
        Value = 2000000,
        Own = false,
        Id = 2495351392,
    },
    Multiplier = 1,
    World1 = {
        Name = "Mint World",
        Value = 1000000,
        Own = false,
    },
    World2 = {
        Name = "Cherry World",
        Value = 9500000,
        Own = false,
    },
    World3 = {
        Name = "Rainbow World",
        Value = 75000000,
        Own = false
    },
    Code1 = {
        Name = "Release",
        Acquired = false,
        Expired = false,
    },
    Code2 = {
        Name = "KudoClickerBest",
        Acquired = false,
        Expired = false,
    },
    OneVOneValues = {
        Added = 0,
        Total = 0,
        Gui1 = 0,
        Gui2 = 0,
        Time = 60,
        Player = "",
    },
    ItemValues = {
        RAP = 0,
        ItemNum = 0,
        IdYouGot = 0,
        YouGot = "",
        YouGotRAP = 0,
        Cases = 1,
    },
};

function MetaData:Join(player)
    local pdata = {
    Kudos = 0,
    Level = 0,
    XPNeeded = 100,
    XP = 0,
    Cases = 1,
    RebirthMultiplyer = 1,
    CostTix = 1,
    SuperKudos = 0, 
    FirstTime = 0,
        OG = {
            Title = "OG",
            Have = false,
            Color = 170, 0, 127,
        },
        Release = {
            Title = "Release",
            Have = false,
            Color = 255, 0, 0,
        },
        Common = {
            Title = "Common",
            Have = false,
            Color = 85, 255, 0,
        },
        Uncommon = {
            Title = "Uncommon",
            Have = false,
            Color = 85, 255, 255,
        },
        Cherry = {
            Title = "Cherry",
            Have = false,
            Color = 255, 0, 255
        },
    EssenceAmount = 0,
    Music1 = {
        Name = "BTS - Dynamite",
        Value = 500000,
        Own = false,
        Id = 5597073660,
    },  
    Music2 = {
        Name = "Come and Go - Juice WRLD",
        Value = 780000,
        Own = false,
        Id = 5341266037,
    },
    Music3 = {
        Name = "Empty (feat. BoyinaBand and Jaiden)",
        Value = 750000,
        Own = false,
        Id = 3364510397,
    },
    Music4 = {
        Name = "Minecraft OST - Pigstep (FlyxTheKid Remix)",
        Value = 1400000,
        Own = false,
        Id = 5763169040,
    },
    Music5 = {
        Name = "OOFER GANG - LIL PUMP",
        Value = 1650000,
        Own = false,
        Id = 1327560343,
    },
    Music6 = {
        Name = "XXXTentacion - Jocelyn Flores",
        Value = 2000000,
        Own = false,
        Id = 2495351392,
    },
    Multiplier = 1,
    World1 = {
        Name = "Mint World",
        Value = 1000000,
        Own = false,
    },
    World2 = {
        Name = "Cherry World",
        Value = 9500000,
        Own = false,
    },
    World3 = {
        Name = "Rainbow World",
        Value = 75000000,
        Own = false
    },
    Code1 = {
        Name = "Release",
        Acquired = false,
        Expired = false,
    },
    Code2 = {
        Name = "KudoClickerBest",
        Acquired = false,
        Expired = false,
    },
    OneVOneValues = {
        Added = 0,
        Total = 0,
        Gui1 = 0,
        Gui2 = 0,
        Time = 60,
        Player = "",
    },
    ItemValues = {
        RAP = 0,
        ItemNum = 0,
        IdYouGot = 0,
        YouGot = "",
        YouGotRAP = 0,
        Cases = 1,
        },
    };


local data = GameData:GetAsync(player.UserId)   

    if data then
    PlayerData[player.UserId] = data
    else
    PlayerData[player.UserId] = pdata
end 
end

Lets say I wanted to add new values, such as new currencies how would I add them to the data? I don't want to make a script if not [data] then PlayerData[player.UserId][data] = {}. I want it to automatically add it with this script. If you need more information I will give it