Hi Grinlor,
You can enter this as a feature request here: http://feedback.qbo.intuit.com/. This is where the engineers go to find the most requested feedback and gather information for future updates.
As for the emails being sent to the junk folders, I recommend trying the steps in this article to correct it: https://community.intuit.com/articles/1265667. Instead of doing do_not_reply@intuit.com, you can choose the email@intuit.com that those invoices and estimates are coming from.
Thanks so much for your time today.
