OK. Now I understood why you post to yourself.
Insert 4 checkboxes from the Developer Tab>Insert>Active X controls and try the below code..Right click the sheet and paste the below code.
Private Sub CheckBox1_Change()
If CheckBox1.Value = True Then
Reset
CheckBox1.Value = True
ActiveWindow.Zoom = 73
End If
End Sub
Private Sub CheckBox2_Change()
If CheckBox2.Value = True Then
Reset
CheckBox2.Value = True
ActiveWindow.Zoom = 90
End If
End Sub
Private Sub CheckBox3_Change()
If CheckBox3.Value = True Then
Reset
CheckBox3.Value = True
ActiveWindow.Zoom = 100
End If
End Sub
Private Sub CheckBox4_Change()
If CheckBox4.Value = True Then
Reset
CheckBox4.Value = True
ActiveWindow.Zoom = 120
End If
End Sub
Sub Reset()
CheckBox1.Value = False
CheckBox2.Value = False
CheckBox3.Value = False
CheckBox4.Value = False
End Sub
Private Sub Worksheet_Activate()
ActiveWindow.Zoom = 100
End Sub