VBA Conditional Formatting and Cell Formatting and Cell Protection

[mharper90]

I have a fillFormula macro, but I want to include something in it to 1) apply a conditional formatting to Range("C7:C" & Lr) that will look for duplicate values and apply a red-bold format to each, and 2) to set column C to a text format so that it will stop dropping leading zeros.

Also, I currently have 4 columns shaded pink and an instruction in the page header to not edit pink cells, but is there a way to add automatic cell protection to these cells so that only macros can modify them/no one can just click on the cell and start editing? On a similar note, sometimes this macro miscounts and starts applying formulas in row 6, instead of row 7, which overwrites the column headings. Can I apply a cell protection to rows 5 and 6 so that the macro can't modify these cells (I'm not as worried about human modification here, but if complete protection is best, that's ok too)?

Sub fillFormula3()

Dim Lr As Long
Dim ws1 As Worksheet: Set ws1 = ThisWorkbook.Sheets("Main Data")

Lr = ws1.Range("A" & Rows.Count).End(xlUp).Row

ws1.Range("E7:E" & Lr).Formula = "=IF(D7="""",D$4,D7)"
ws1.Range("F7:F" & Lr).Formula = "=IF(G7="""",G$4,G7)"
ws1.Range("M7:M" & Lr).Formula = "=SUM(I7:L7)"
ws1.Range("N7:N" & Lr).Formula = "=IF(M7="""","""",(H7-M7))"

ws1.Range("A7:B" & Lr).Interior.Color = RGB(248, 203, 176) 'light pink
ws1.Range("M7:N" & Lr).Interior.Color = RGB(248, 203, 176) 'light pink

With ws1.Range("A7:N" & Lr).Borders[INDENT].LineStyle = xlContinuous
.ColorIndex = 11[/INDENT]
End With

With ws1
[INDENT]With Application.ErrorCheckingOptions[/INDENT]
[INDENT=2].BackgroundChecking = False
.EvaluateToError = False
.InconsistentFormula = False[/INDENT]
[INDENT]End With[/INDENT]
End With

End Sub