Can we generate revenue at a different percentage to the contract for specific expenditure type

Summary: Is there a way to generate revenue at a different percentage to the contract for specific expenditure type in grants managements

Outline of problem

We would like to generate revenue at 100% for one expenditure type, but with all other costs at the contribution rate on the contract.

Scenario - A project has incurred cost for £100k partnership and will claim £100k back, the rest of the costs are claimed back at 80% in line with the

contribution rate on the contract.

We currently do not have a work around for this, other than a workaround outside of the system.

We are currently using 24C and moving to 24D just before Christmas.