First of all, ensure that you’ve created the variations before; if not, please refer to:
Zii Inventory-How to Create Variations – Zii Help Center (ziicloud.com)
Go to “Product” under “Products”.
Double click the item that you want to modify.
Then when you on the item modification page, click “Variables & Pricing”.
click “Add another option”.
Add variations.
Prices of the item’s variation are editable.
And prictures can be uploaded for each variation.
Click “Save” in the upper left corner to save the changes you’ve made to this item.