Dear Karman ,
Kindly find the answers for your previous questions ,
1- No cost for the engineering work assigned to our schedule , actually we make the baseline schedule and the updates with only budget cost ” Selling Prices ” .
2- We assigned the budget cost to every activity and get the cash flow for the budget cost ,and it is the most practical and effective way.
3- In general , no , but it depends on the contract and its clauses and conditions , if the contract mention that the contractor has the right to get any payment after any engineering work type ” shop drawing – Material” , the contractor should get this payment.