ADD CUSTOM FIELDS ON ITEMS
It is possible to add custom fields on Items, just like you do in the Styles section. The setup is done in the same way in the Admin section and you can read more about it here.
After, you can start to type in values for your Items - see all the steps here.
If you want to use Dividers in your Item Custom Fields - these are set up just like the ones used on Styles - see how-to here
Item Custom Field dividers work the same as the ones for Styles does - read more here