Ability to Save Invoices Without Sending

Request on behalf of client Attraction Marketing: 

Summary:

Add the option to save/access an invoice after it is created, without having to send it to the customer.

Current Behavior: In invoices, when using the "request payment" function, you can save as draft or preview and send, but can't access/save the invoice without being prompted to send the invoice to the customer. 

Problem: User's business has scheduled payments to bill customers automatically. They want to use invoices for record keeping and forecasting purposes. Without the ability to access the templated invoice in drafts, they have to follow the Preview & Send prompt to see it. 

Requested Enhancement: Add the option to see or download the templated invoice, or copy the invoice link, for the customer purchase without going through the Preview & Send process. This way, the user can easily access invoices for internal bookkeeping.