How to complete the different production lines of same order at different time

Topic :- How to complete the production of different production lines of same order at different time

Detail:-

 If there is a Situation when in a manufacturing company a big production order is generated but on daily bases some quantity of production is completed and dispatched.
 To solve this problem let a production order is generated it is splited into different production lot by
Manufacturing->Production Order To Start->Select the Production from the list->Final Product->select the line->Split in production lots
let the production is splited into 4 lots
but the Status of the different line of production are in the Waiting State
so the problem is how to complete the prodution
if we start the production then only the Status of the first line of final products is change to Avilable
after completing that line by Make picking
the other product line are still in waiting sate
How can we now complete the production os second line without touching other lines
if we click Production Done than all the production lots of that order are complete

Problem is individually completing the different lines of production of the same order in different time