Scroll down to Subcon Variation Work Space
Click + Add Manual to add item
Input the below details:
1. Work Code (you may enter as 1, 2, 3, etc)
2. Description
3. UOM (please ensure that you have set up your UOM under Entity Settings - Manage UOM)
4. Quantity
5. Unit Price
6. Remarks (if any)
Click + Add Manual to add a new variation item (eg: item 2)
You can click the + button to add more sub group (eg: 1.1, 1.2) if you wish to group the variation items under 1 header.