Sub SelectionGras()
Dim Gras_Plage As Range, c As Range
For Each c In ActiveSheet.UsedRange
If c.Font.Bold Then
If Gras_Plage Is Nothing Then
Set Gras_Plage = c
Else
Set Gras_Plage = Union(Gras_Plage, c)
End If
End If
Next
If Not Gras_Plage Is Nothing Then
Gras_Plage.Select
End If
End Sub