is it possible to merge collection notes, dunning history from one customer site to another

Hello,

we are merging duplicate sites within customers using the Customer Merge facility in AR. This merges invoice and credits from one site to another. However, this function doesn't merge collector notes and dunning history on the merge-from site in Advanced Collections. Is there any way of merging these notes and history from the merge-from site to the merge-to site.

thanks