Sales Invoice Columns

Hi, I am trying to re-arrange the columns on my Sales Invoice. I have created a Date Custom Field and a Text Custom Field. I am trying to shift the Date to Column 1 (it is presently in Column 4). The Text Custom Field (Times Worked) is at the bottom of the invoice on its own. I am trying to get it into Column 4. I’m aiming to have the Invoice Headings in this order
Date, Item, Description, Times Worked, Qty, Unit Price, Total
I’d appreciate any help. Thank you

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