Put a checkbox from the forms toolbar (not the control toolbox toolbar) on a
worksheet.

Assign it this macro:

Option Explicit
Sub testme()

   Dim myRng As Range
   Dim myCBX As CheckBox
   
   Set myCBX = ActiveSheet.CheckBoxes(Application.Caller)
   
   Set myRng = ActiveSheet.Range("a8,a10,a12")
   
'    If myCBX.Value = xlOn Then
'        myRng.EntireRow.Hidden = True
'    Else
'        myRng.EntireRow.Hidden = False
'    End If
   
   myRng.EntireRow.Hidden = myCBX.Value

End Sub

The commented lines may be easier to understand, but they're equivalent to the
last line.

try
Sub ToggleHideColumns()

'Range("a1,c1,g1").EntireColumn.Hidden = Not
Range("a1,c1,g1").EntireColumn.Hidden
Range("a2,a4,a8").EntireRow.Hidden = Not Range("a2,a4,a8").EntireRow.Hidden
End Sub