New to pipedrive, so I'm sorry if I'm being stupid! 

For some of our clients, they ask up to add a 10% Production Fee to an estimate/invoice.

In the deal module, is it possible to add a module to make that happen? It could work exactly the same as the Tax clause, if we could duplicate and rename that.

It would ideally live after 'sub total' before the full 'total'?

Does anyone know if that's possible?