Configure Account Structure

Software is D365 for Finance and Operations, going live 8/1/18.

accounts are Fund-Department-Main Account xx-xxxx-xxxx

I would like to define the P&L structure on a department by department basis instead of a by fund basis. This is the type of structure I would like to create but can’t per our implementation team.

Fund: 11,31 Dept: 8450 Main: 4000…9999

Fund: 31 Dept: 6790 Main: 5000…5999

Fund: 33 Dept: 6837 Main: 4000…9999

D365 is forcing the fund segment to be the same down the entire list of departments. When I correct one of them all of them change. I was told that this is due to the order of the segments and in order to do what I outlined above I would need to change the order of my segments. Is there a workaround to this?