Any idea when we will see Quickbooks catch up with other service providers to have a simple Tips option on the invoices that the CUSTOMER can choose to add a tip too?

Manually adding the tip as a line item ahead of sending the invoice is a laughable solution when so many other provides have this figured out. You can read countless threads in the community asking for this service over the last several YEARS and the same answer is provided: Fill in a feedback form and maybe someone will look at it. 

Hyper frustrating and a silly reason for Quickbooks to lose a bunch paying customers.