Merging same items for different colors in one work order or production plan

Hi ERPNext Community
I went to create work order For example :
I have 3 items in different colors (Variant Item)

, with 4 process , the first ,second and third process(operation) same as same material and size , I wanna merging first , second ,third process in one work order.
or in other work
merge the work order contain same item and deferent colors .
Can I do this.
I apologize that the translation has lost some details,
Thank you