1. Click on the menu of the item to convert into a Kit

2. Click "Convert to Kit"

3. Choose the pricing method. You can change this later.

4. Click "Find"

5. Open up the section you want to get the kit items from

6. Click "Add" against each desired kit item

7. Click "Add"

8. Click "Convert"

9. To add another item to the kit, drag-and-drop it on the kit