Hi,
The answer to this forum is --->
To add the specific fields of the different MEP object inside your schedules, you need to integrate the specific fields from the MEP library before. Too do this :
1. Open the "Scheme Settings" of your specific schedule.
2. "Add Criteria" for your selected MEP objects (schedule - Elements).
3. Click on the arrow next to "add fields" and select "Library Parts Parameter".
4. Search for MEP library that content your MEP objects.
5. Search for .gms for new propositions of fields (algorithms)
6. Add your new algorithms in your "Selected Parameters"
7. Import algorithms to your "Scheme Settings"
8. Done
Good Luck