If you wish to have more than one option of a design when making a design request, you can simply:
Click on the "Request new designs" button on the right-side menu
Select the artwork you have already uploaded from your selection at Step 1
Select the same shape you have already requested for that artwork in the past at Step 2
Repeat points 1 and 2 if you wish to have even more options.
The SKU of the new product created should end with a "B" as this will be a "B" version