Misschien heb je hier iets aan?
Ooit ergens van dit forum gehaald.
Zie ook de verwijzing naar de orginele internetpagina voor de uitleg.
Sub InsertRowsAndFillFormulas(Optional vRows As Long)
' Documented:
http://www.mvps.org/dmcritchie/excel/insrtrow.htm
' Re: Insert Rows -- 1997/09/24 Mark Hill
'Dim vRows As Integer
' row selection based on active cell -- rev. 2000-09-02 David McRitchie
ActiveCell.EntireRow.Select 'So you do not have to preselect entire row
If vRows <> 1 Then
vRows = Application.InputBox(prompt:= _
"Hoeveel rijen wilt u invoegen?", Title:="Add Rows", Default:=1, Type:=1) 'type 1 is number
If vRows = False Then Exit Sub
End If
'if you just want to add cells and not entire rows
'then delete ".EntireRow" in the following line
'rev. 2001-01-17 Gary L. Brown, programming, Grouped sheets
Dim sht As Worksheet, shts() As String, i As Integer
ReDim shts(1 To Worksheets.Application.ActiveWorkbook.Windows(1).SelectedSheets.Count)
i = 0
For Each sht In Application.ActiveWorkbook.Windows(1).SelectedSheets
Sheets(sht.Name).Select
i = i + 1
shts(i) = sht.Name
Selection.Resize(rowsize:=2).Rows(2).EntireRow.Resize(rowsize:=vRows).Insert Shift:=xlDown
Selection.AutoFill Selection.Resize(rowsize:=vRows + 1), xlFillDefault
On Error Resume Next 'to handle no constants in range -- John McKee 2000/02/01
' to remove the non-formulas -- 1998/03/11 Bill Manville
Selection.Offset(1).Resize(vRows).EntireRow. _
SpecialCells(xlConstants).ClearContents
Next sht
Worksheets(shts).Select
End Sub