Copy Last X Rows Of Table & Set Page Breaks

I want to add a button on my Worksheet that will basically copy the last portion of the sheet (about 40 lines) and insert it at the bottom of the sheet (above the button). Each time the button is clicked, the last 40 lines will be copied and pasted. The script also sets the page break to the appropriate line. To achieve this, I've set up a hidden sheet that contains the line numbers and last page number. The script accrues these numbers every time the script runs.

I realise there may be a better way to do this, but at this point I'm trying to stick to what I know. I'm trying to use the function Row().Select, and I keep getting an Error 13. Example of my

Sub AddPageTest()
Sheets("SetPoint").Select
Dim CopyRows As String
CopyRows = Range("C13").Select
Dim InsertRow As String
InsertRow = Range("C14").Select
Dim SelRange As String
SelRange = Range("C12").Select
Dim LastPageNum As Integer
LastPageNum = Range("C5").Select
Dim NewLastPageNum As Integer
NewLastPageNum = LastPageNum + 1
Dim LastPageBreak As String
LastPageBreak = Range("C15").Select
Dim NextPageFirstRow As Integer
NextPageFirstRow = Range("C4").Select + 1...................