Indent multiple Columns based on Value in One Column

[BEEJAY]

Hi all:
Looking to format a BOM down-load (into Excel), so that the BOM levels are indented according to the level number.
Levels are indicated in Column C. Columns to indent would be C thru F.
Number of rows is undetermined.

Setting up the code, I have the following - although so far mostly instructions without code.
I hope the requirements are expressed clearly enough.

Sub BomIndentCols()

    Dim LastRow As Integer

'   Set Columns to be Indented to Default Left Align
        Range("C:F").HorizontalAlignment = xlLeft

'   Determine Last Row for THIS Spread-Sheet
        LastRow = Cells(Rows.Count, "E").End(xlUp).Row

'   Go to C, Last Row
        Range("C" & LastRow).Select

    '   If C = Blank, Do Nothing
    '   If C = 0, Do Nothing
    '   If C = 1, Indent 2 spaces
    '   If C = 2, Indent 4 Spaces
    '   If C = 3, Indent 6 Spaces
    '   If C = 4, Indent 8 Spaces
    '   If C = 5, Indent 10 Spaces
    '   If C = 6, Indent 12 Spaces

    '   Indent Columns C, D, E & F,  In current Row,  according to above.
    
    '   Move UP one Row, and repeat,  Until all completed, or until error
    '   (Several rows at top will be headings - therefore NOT be blank, or 0 thru 6)

End Sub