How to change KeyCode.Name to Enum.KeyCode?

I want to add xbox controls for this custom toolbar. I need to change it to Enum.KeyCode and it currently is KeyCode.Name which does not work for xbox controls. What might be the best way to make this change?

game:GetService('StarterGui'):SetCoreGuiEnabled(Enum.CoreGuiType.Backpack, false)

 --< variables >--
local uis = game:GetService("UserInputService")
local player = game.Players.LocalPlayer
local char = workspace:WaitForChild(player.Name) -- added WaitForChild
local bp = player.Backpack
local hum = char:WaitForChild("Humanoid")
local frame = script.Parent.Frame
local template = frame.Template
local equipped = 0.2 -- icon transparencies
local unequipped = 0.7

local iconSize = template.Size
local iconBorder = {x = 15, y = 5} -- pixel space between icons

local inputKeys = { -- dictionary for effective referencing
    ["One"] = {txt = "1"},
    ["Two"] = {txt = "2"},
    ["Three"] = {txt = "3"},
    ["Four"] = {txt = "4"},
    ["Five"] = {txt = "5"},
    ["Six"] = {txt = "6"},
    ["Seven"] = {txt = "7"},
    ["Eight"] = {txt = "8"},
    ["Nine"] = {txt = "9"},
    ["Zero"] = {txt = "0"},
}

local inputOrder = { -- array for storing the order of the keys
    inputKeys["One"],inputKeys["Two"],inputKeys["Three"],inputKeys["Four"],inputKeys["Five"],
    inputKeys["Six"],inputKeys["Seven"],inputKeys["Eight"],inputKeys["Nine"],inputKeys["Zero"],
}

--< functions >--
function handleEquip(tool)
    if tool then
        if tool.Parent ~= char then
            hum:EquipTool(tool)
        else
            hum:UnequipTools()
        end
    end
end

function create() -- creates all the icons at once (and will only run once)

    local toShow = #inputOrder -- # operator can only be used with an array, not a dictionary
    local totalX = (toShow*iconSize.X.Offset)+((toShow+1)*iconBorder.x)
    local totalY = iconSize.Y.Offset + (2*iconBorder.y)

    frame.Size = UDim2.new(0, totalX, 0, totalY)
    frame.Position = UDim2.new(0.5, -(totalX/2), 1, -(totalY+(iconBorder.y*2)))
    frame.Visible = true -- just in case!

    for i = 1, #inputOrder do

        local value = inputOrder[i]     
        local clone = template:Clone()
        clone.Parent = frame
        clone.Label.Text = value["txt"]
        clone.Name = value["txt"]
        clone.Visible = true
        clone.Position = UDim2.new(0, (i-1)*(iconSize.X.Offset)+(iconBorder.x*i), 0, iconBorder.y)
        clone.ImageTransparency = unequipped

        local tool = value["tool"]
        if tool then
            clone.Tool.Image = tool.TextureId
        end

        clone.Tool.MouseButton1Down:Connect(function() -- click icon to equip/unequip
            for key, value in pairs(inputKeys) do
                if value["txt"] == clone.Name then
                    handleEquip(value["tool"]) 
                end 
            end
        end)

    end 
    template:Destroy()
end

function setup() -- sets up all the tools already in the backpack (and will only run once)
    local tools = bp:GetChildren()
    for i = 1, #tools do 
        if tools[i]:IsA("Tool") then -- does not assume that all objects in the backpack will be a tool (2.11.18)
        for i = 1, #inputOrder do
            local value = inputOrder[i]
            if not value["tool"] then -- if the tool slot is free...
                value["tool"] = tools[i]    
                break -- stop searching for a free slot
            end
        end
        end
    end
    create()
end

function adjust()
    for key, value in pairs(inputKeys) do
        local tool = value["tool"]
        local icon = frame:FindFirstChild(value["txt"])
        if tool then
            icon.Tool.Image = tool.TextureId
            if tool.Parent == char then -- if the tool is equipped...
                icon.ImageTransparency = equipped
            else
                icon.ImageTransparency = unequipped
            end
        else
            icon.Tool.Image = ""
            icon.ImageTransparency = unequipped
        end
    end
end

function onKeyPress(inputObject) -- press keys to equip/unequip
    local key = inputObject.KeyCode.Name
    local value = inputKeys[key]
    if value and uis:GetFocusedTextBox() == nil then -- don't equip/unequip while typing in text box
        handleEquip(value["tool"])
    end 
end

function handleAddition(adding)

    if adding:IsA("Tool") then
        local new = true

        for key, value in pairs(inputKeys) do
            local tool = value["tool"]
            if tool then
                if tool == adding then
                    new = false
                end
            end
        end

        if new then
            for i = 1, #inputOrder do
                local tool = inputOrder[i]["tool"]
                if not tool then -- if the tool slot is free...
                    inputOrder[i]["tool"] = adding
                    break
                end
            end
        end

    adjust()
    end
end

function handleRemoval(removing) 
    if removing:IsA("Tool") then
        if removing.Parent ~= char and removing.Parent ~= bp then

            for i = 1, #inputOrder do
                if inputOrder[i]["tool"] == removing then
                    inputOrder[i]["tool"] = nil
                    break
                end
            end
        end

        adjust()
    end
end

--< events >--
uis.InputBegan:Connect(onKeyPress)

char.ChildAdded:Connect(handleAddition)
char.ChildRemoved:Connect(handleRemoval)

bp.ChildAdded:Connect(handleAddition)
bp.ChildRemoved:Connect(handleRemoval)

--< start >--
setup()

--[[ Shiro75 ]]--