In Design & Print Online, step 3, Customize:
Look to the left side column and click onto the more button with the three-round circle's Icon
Then select Sequential Numbers, below
Fill in the Start & End Value in the drop-down fields. The example below
After entering your numbers, click onto Add Sequential Numbers at the bottom
Look at your miniature-template at the top right side of the screen to preview the updated numbering.
To Edit your sequential numbers:
Click inside the text box with Sequential Numbers so that your number highlights green.
Sequential Number options will pull out from the left
Make your changes
Click Edit Sequential Numbers to view your new changes
To Add Zeros before each sequential number:
In the Leading Zeros box add the number of spaces
To Add Numbers BEFORE the sequential numbers:
Type the numbers in the Prefix box
(ie: adding 123 will add 123 before EVERY sequential number
To add numbers after the sequential numbers:
Type the numbers in the Suffix box
(ie: adding 123 will add 123 after every sequential number)
