How do I get a group of checkboxes to stay where they are moved to using vb code?

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VB

MS-Excel

Sheets(appServer & "chart").Select
ActiveChart.ChartTitle.Select
ActiveChart.ChartTitle.Text = appServer
ActiveChart.PlotArea.Select
Selection.Width = 434.944
ActiveChart.Legend.Select
ActiveChart.ChartArea.Select
ActiveChart.Legend.Select
Selection.Left = 466.86
Selection.Top = 62.544

This is my code to shrink the plot area of a chart in order to move the legend over to make room for checkboxes to toggle the display of each series. The program works great until I save and reopen it. When it is reopened the checkboxes end up on top of the legend and I can easily fix that every time I reopen the file, but I would rather just fix the issue in my code.Thanks in advance for any help.

Dim chartRangeStart As Integer
Dim chartRangeEnd As Integer
Dim serverNum As Integer
Dim numOfServers As Integer
Dim topOfCheckbox As Integer
Dim appServerNum As Integer
Dim appServer As String

chartRangeStart = 51
chartRangeEnd = 98
numOfServers = 23
serverNum = 1
topOfCheckbox = 56
appServerNum = 0
appServer = server
   
   Do While serverNum <= numOfServers
' adds a checkbox for each appServer in an array
    ActiveChart.CheckBoxes.Add(4529766, 485607, 685185.75, 685896.75).Select
    Selection.Characters.Text = ServerNamesArray(appServerNum)
    Selection.ShapeRange.Fill.Visible = msoTrue
    Selection.ShapeRange.Fill.Solid
    Selection.ShapeRange.Fill.ForeColor.SchemeColor = 9
    Selection.ShapeRange.Fill.Transparency = 0#
    Selection.ShapeRange.Line.Weight = 0.75
    Selection.ShapeRange.Line.DashStyle = msoLineSolid
    Selection.ShapeRange.Line.Style = msoLineSingle
    Selection.ShapeRange.Line.Transparency = 0#
    Selection.ShapeRange.Line.Visible = msoFalse
      With Selection
        .Value = xlOff
        .LinkedCell = appServer & "!$" & ColumnArray(appServerNum) & "$2"
        .Display3DShading = False
      End With

' moves the checkbox to where I want it (until I save and reopen)
    Selection.ShapeRange.IncrementLeft 465#
    Selection.ShapeRange.IncrementTop topOfCheckbox
    Selection.ShapeRange.ScaleWidth 2#, msoFalse, msoScaleFromTopLeft
    Selection.ShapeRange.ScaleHeight 1#, msoFalse, msoScaleFromTopLeft
    topOfCheckbox = topOfCheckbox + 13
     
    Loop

This is the code that adds the checkboxes to the chart.