1 Click Labels and Packing Slips. 

This is the most simple yet frustrating feature. If do the 1 click print I only get the shipping label. (2 different printers)  If Create the shipment, then go to "Ready to Ship" I can click "Print Label and Packing slip" and it works perfectly. Why can this not get added and a simple setting toggle? 

There are so many posts for this simple feature!!  over 6 years of posts. This is not a hard to add feature, It already works. Just enable it for quick print please. Many other shipping web services already offer this.