Acabei de criar uma macro
Sub AddBlankRows()
Dim rng As Range
Set rng = Selection
Set CurrentSheet = ActiveWorkbook.ActiveSheet
firstSelRow = rng.Rows(1).Row
totalSelRows = rng.Rows.Count
For idx = 1 To totalSelRows Step 1
curRow = (idx - 1) * 2 + firstSelRow
Cells(curRow, 1).EntireRow.Insert
Next idx
End Sub