Let me send itemized invoices without a proposal

I want to use the standalone invoice feature to send an invoice. I want to send 1 invoice containing several distinct services, and I want to show the price for each service. For instance: - demolition $600 - buying tile $400 - installing tile $1000 etc Right now, I can't do that. Invoices are lump sum only. I don't want to send 1 invoice per services. I also don't want to go through the whole proposal flow to itemize it. Let me just send an invoice with multiple line items.