How would I go about updating new chats?

Hey folks,

I'm making my own custom chat GUI and was wondering the best way I should go about position/removing lines for the chat UI.

The maximum amount of chat frames at a time is 6. How would I go about removing it and updating the other positions?

The script I currently have is as followed:

local function createUi(...)
    local tuple={...}

    if(canChatLimit(tuple[2])) then

        local frame=Instance.new("Frame")
        frame.Name="PlayerChatFrame"
        frame.Transparency=1
        frame.Size=UDim2.new(1,0,.15,0)
        frame.Parent=frame2


        local textLabel=Instance.new("TextLabel", frame)
        textLabel.TextColor3=Color3.new(200,0,0)
        textLabel.Text=tuple[1]..":"
        textLabel.Name="PlayerName"
        textLabel.Size=UDim2.new(.3,0,1,0)
        textLabel.Position=UDim2.new(0,0,0,0)
        textLabel.BackgroundTransparency=.7
        textLabel.TextStrokeTransparency=0
        textLabel.TextStrokeColor3=Color3.new(170,255,0)

        local stringUI=Instance.new("TextLabel", frame)
        stringUI.Name="StringUI"
        stringUI.Text=tuple[2]
        stringUI.TextColor3=TextColor(tuple[1])
        stringUI.Size=UDim2.new(.7,0,1,0)
        stringUI.Position=UDim2.new(0.3,0,0,0)
        stringUI.BackgroundTransparency=.7
        stringUI.TextStrokeTransparency=0
        stringUI.TextStrokeColor3=Color3.new(0,0,0)

    end
end

Cheers!