Copy values from Invoices lines DFF to Distributions DFF for SLA derivation

Summary

Copy values from Invoices lines DFF to Distributions DFF for SLA derivation

Content

We have a requirement to derive accounting based on the Custom DFF values populated in the Invoice Lines. Through this approach we are able to derive accounting of Item expense lines but not for our Tax lines. 

Hence we would like to understand is there any way to copy the DFF values from Invoice lines to Distribution DFFs, so that the accounting issue will be resolved for Non recoverable Tax.