Creating Custom Envelopes
To create a custom envelope size, first tap/click the envelope selection button at the top of the screen.
Then tap/click the Create Custom Envelope button.
The Custom Envelope screen will then be displayed.
Give the custom envelope a name so that it can selected again at a later date.
Then enter the width and height for the envelope. Select Imperial Units if you want to enter the dimensions in inches. Otherwise, leave Imperial Units unchecked, and enter the dimensions in cm.
Tap/Click Create Envelope when done.