try this, it will paste whatever is copied one cell to the right - no more validation so it will keep doing it if you press the button again and again. Can be improved further
Code:
Sub Copy()
Selection.Copy
Selection.Offset(0, 1).PasteSpecial Paste:=xlPasteValues, Operation:=xlNone, SkipBlanks _
:=False, Transpose:=False
Application.CutCopyMode = False
End Sub