| 
    
     |  | 例えば、統合と並べ替えの機能で可能です。 マクロを使うまでもないと思いますが。
 
 Option Explicit
 
 Sub test()
 Dim 統合先 As Range, 統合元 As Range
 
 Set 統合先 = ActiveSheet.Columns("H:I")
 Set 統合元 = ActiveSheet.Columns("E:F")
 
 統合先.ClearContents
 
 With 統合先
 .Consolidate _
 Sources:=統合元.Address(ReferenceStyle:=xlR1C1), _
 Function:=xlSum, _
 TopRow:=False, _
 LeftColumn:=True
 End With
 
 With ActiveSheet.Sort.SortFields
 .Clear
 .Add Key:=統合先.Cells(1)
 End With
 With ActiveSheet.Sort
 .SetRange 統合先
 .Header = xlNo
 .Apply
 End With
 
 End Sub
 
 Sub test2()
 '
 Dim 統合先 As Range, 統合元 As Range
 
 Set 統合先 = ActiveSheet.Columns("K:L")
 Set 統合元 = ActiveSheet.Columns("E:F")
 
 統合先.Columns(2).ClearContents
 
 With 統合先
 .Consolidate _
 Sources:=統合元.Address(ReferenceStyle:=xlR1C1), _
 Function:=xlSum, _
 TopRow:=False, _
 LeftColumn:=True
 End With
 
 End Sub
 
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