The current Inter Account Transfer feature is a pain with importing bank statements. I have to delete the imported transactions on both sides then create a new Inter Account Transfer.
see this post & the linked idea thread Inter account transfers - #7 by Patch
Also see the Guide: Post inter account transfers from imported bank statements | Manager.
I use option 2 on Patch’s idea thread. This allows you to create bank rules that will map your inter account transactions into the clearing account.
I think this should be implemented realistically. I would propose a tool that searches for 2 similar transactions in two selected accounts, and you could then select these groups and convert them to inter account transfers.