Used Goods...

Freeagent developers, any chance of an extra section where we can keep track of the invoices that relate to used goods and are therefore part of the used goods vat margin scheme, see http://www.hmrc.gov.uk/vat/start/sche.... We need to find the difference between the sale and purchase price and from that calculate the vat due. It's the only thing I still need to keep a spreadsheet for when using Freeagent.