Preferences for Photo Print can be set through the Photo Print Preferences window and through some items in the "Special" menu.
General Settings

Measurements - Allows you to choose to display measurements in inches or centimeters.
Adding Custom Page Sizes

Adding Custom Frame Sizes

Remembering the First Window Position
As you use Photo Print, you will want to optimize your work flow and have as few clicks as possible to print your pictures. One feature in Photo Print to help you do that is the ability to remember a Photo Print window position and size and use that information to position the first window that is opened when the application starts.
To save the first window position, position and size a Photo Print window and then select the menu item “Special->Window Position->Remember." The next time you open the Photo Print, the first window opened will move to that position and size.
To reset to the default window position, choose the menu item “Special->Window Position->Reset.”