Simplifying code

I am writing some code that would change a few rows of cells if a checkbox is ticked, any idea on how to simplify the code I got? Any help and suggestions would be appreciated! Thank you!

Private Sub BoxTick_Click()
If BoxTick.Value = True Then
Sheets("Sheet2").Unprotect
Sheets("Sheet2").Range("C26").FormulaR1C1 = "N/A"
Sheets("Sheet2").Range("D26").FormulaR1C1 = "N/A"
Sheets("Sheet2").Range("C24").FormulaR1C1 = "N/A"
Sheets("Sheet2").Range("D24").FormulaR1C1 = "N/A"
Sheets("Sheet2").Range("C25").FormulaR1C1 = "N/A"
Sheets("Sheet2").Range("D25").FormulaR1C1 = "N/A"
Sheets("Sheet2").Range("C30").FormulaR1C1 = "N/A"
Sheets("Sheet2").Range("D30").FormulaR1C1 = "N/A"
Sheets("Sheet2").Range("D28").FormulaR1C1 = "N/A"
Sheets("Sheet2").Range("C28").FormulaR1C1 = "N/A"
Sheets("Sheet2").Range("C29").FormulaR1C1 = "N/A"
Sheets("Sheet2").Range("D29").FormulaR1C1 = "N/A"
Sheets("Sheet2").Rows("22:22").EntireRow.Hidden = True
Sheets("Sheet2").Rows("24:26").EntireRow.Hidden = True
Sheets("Sheet2").Rows("28:30").EntireRow.Hidden = True
Sheets("Sheet2").Range("A23").FormulaR1C1 = "12"
Sheets("Sheet2").Range("A31").FormulaR1C1 = "13"
Sheets("Sheet2").Range("A32").FormulaR1C1 = "14"
Sheets("Sheet2").Range("A34").FormulaR1C1 = "15"
Sheets("Sheet2").Range("A35").FormulaR1C1 = "16"
Sheets("Sheet2").Range("A36").FormulaR1C1 = "17"
Sheets("Sheet2").Range("A37").FormulaR1C1 = "18"
Sheets("Sheet2").Range("A38").FormulaR1C1 = "19"
Sheets("Sheet2").Range("A40").FormulaR1C1 = "20"
Sheets("Sheet2").Range("A41").FormulaR1C1 = "21"
Sheets("Sheet2").Range("A42").FormulaR1C1 = "22"
Sheets("Sheet2").Range("A43").FormulaR1C1 = "23"
Sheets("Sheet2").Range("A44").FormulaR1C1 = "24"
Sheets("Sheet2").Range("A45").FormulaR1C1 = "25"
Sheets("Sheet2").Range("A46").FormulaR1C1 = "26"
Sheets("Sheet2").Range("A47").FormulaR1C1 = "27"
Sheets("Sheet2").Range("A48").FormulaR1C1 = "28"
Sheets("Sheet2").Protect
End If
End Sub

Thank you tigeravatar! Here is the simplifed code from tigeravatar:

Originally Posted by tigeravatar

Private Sub BoxTick_Click()
    
    If BoxTick.Value = True Then
        
        Dim i As Long
        Dim iCell As Range
        
        With Sheets("Sheet2")
            .Unprotect
            .Range("C24:D26,C28:D29").Value = "N/A"
            .Range("22:22,24:26,28:30").EntireRow.Hidden = True
            
            i = 12
            For Each iCell In .Range("A23,A31:A32,A34:A38,A40:A48")
                iCell.Value = i
                i = i + 1
            Next iCell
            
            .Protect
        End With
        
    End If
    
End Sub

cg0789,

One way...

Private Sub BoxTick_Click()
    
    If BoxTick.Value = True Then
        
        Dim i As Long
        Dim iCell As Range
        
        With Sheets("Sheet2")
            .Unprotect
            .Range("C24:D26,C28:D29").Value = "N/A"
            .Range("22:22,24:26,28:30").EntireRow.Hidden = True
            
            i = 12
            For Each iCell In .Range("A23,A31:A32,A34:A38,A40:A48")
                iCell.Value = i
                i = i + 1
            Next iCell
            
            .Protect
        End With
        
    End If
    
End Sub