IFS Compatible Unit

Hi Team, I am trying to implement CU’s in IFS cloud for electric utility Long Cycle process. I did initial setup for CU but still I have below question to ​@IFS. 

1. How to add a CU to a WO created from the upstream system.
2. How a WO can have multiple CU associate to that. 
3. How to handle the ASBUILT and DESIGN BUILT. 
4. Where We can CU Estimate revision. 

​@IFS Global Consulting Services ​@IFS RD Product Management @IFS

Thanks

Lokesh