Sales/Purchases: Include a Categories column on Enter Sales/Purchases window

Please action. It will not impact the balance sheet/P&L. We all just need to be able to assign both categories and jobs to each line item of a sale and purchase. Each sale has individual components assigned to certain office/business sections. We can have purchases that need to allocated to certain offices (i.e. category) and jobs. (e.g. national freight invoices have individual lines items that are both job and office (i.e. category) specific).