Sub ParasDeleteMultiSelection()
    Selection.Find.ClearFormatting
    Selection.Find.Replacement.ClearFormatting
    With Selection.Find
        .Text = "^13{2,}"
        .Replacement.Text = "^p"
        .Forward = True
        .Wrap = wdFindStop
        .Format = False
        .MatchWildcards = True
    End With
    Selection.Find.Execute Replace:=wdReplaceAll
End Sub

Sub ParasInsertBlanksSelection()
    Selection.Find.ClearFormatting
    Selection.Find.Replacement.ClearFormatting
    With Selection.Find
        .Text = "[^13]"
        .Replacement.Text = "^p^p"
        .Forward = True
        .Wrap = wdFindStop
        .Format = False
        .MatchWildcards = True
    End With
    Selection.Find.Execute Replace:=wdReplaceAll
End Sub