Override default task with inter-project billing extension

Hello,

I am working with a client who wants to use inter-project billing to pass tasks and expenditure types from the provider to the receiver. We have figured out how to override the default task, and now when the invoice imports into the receiver's AP, it has multiple lines with the correct expenditure types.

We would like to do the same thing for tasks, using the assumption that the task numbers and names are the same on provider and receiver projects. If there in an invoice charged to provider tasks 123, ABC, and 789, then the lines passed to the receiver's AP should be receiver tasks 123, ABC, and 789.