Are you using the QuickBooks standard template or have you created your own and imported it?
If you are using the QuickBooks standard template you can remove or rename columns and depending on the package you are in you may have the option of adding up to 3 custom field boxes,you can not add columns to the main body of the invoice though.
If you have created your own you would need to adjust the original word document and import it again.
i have tried to rename columns but it doesn’t allow me to do what I need too at all. I need a column that’s for materials then a column for labour then the total which I cannot achieve