To print return address labels, or to save a return address to print on envelopes, first go to any of your lists and tap the print button.
Then tap Return Address to display the Return Address entry screen.
Then just type in your return address (or actually any information that you want printed on several labels/envelopes).
Printing Return Labels
If you are printing labels, you need to enter the number of labels to print. The Number To Print should start off as the number in the list you started with in the first step. However, you can change this to whatever number you want. When completed, tap the Create Return Labels button.
You will then see a preview of the return address labels. You can change the label sheet type etc. by tapping Setting on the top right where you can also change the Color and Font or add an image to the label.
When you are ready, tap the AirPrint button or Email as desired.
Saving Return Address For Envelopes
If the return address is intended for envelopes, there is no need to change the Number To Print. Simply enter the address and tap the Save For Envelopes button.