Add an additional size or multiple sizes to an existing Size Category.
When adding sizes to existing size categories, the newly added sizes will also be added to all existing Products using this Size Category in all Seasons.
Find the Size Category you would like to add the Additional Size or Sizes to...
Click on [Add Sizes]
You can now enter in the first new size and select its placement
Once the new size is entered and the placement select - you can review the new size added to the Existing Size Category and Click [OK]
You can now see the New Size added to the Size Category
To add more Sizes, Repeat the Process above by Clicking on [Add Size].