[GNC] Bulk setup of accounts?

[Bob Alei]

Hi,
     Noob here.  Trying to initialize my GnuCash.  I imported 7 months 
worth of transactions to my checking account, wanting to initialize 
starting Jan 1, 2024.  I didn't want to take the time during import to 
specify all the transfer accounts so I thought I'd go ahead and import 
and do that afterward.  So now I have a ton of imbalanced transactions.  
I'm looking for a way to initialize them efficiently, like the way it's 
done with the match account tool in the import where you can select 
multiple transactions at once and assign accounts or notes to all of 
them at once.  But I can't find any way to "batch" assign accounts to 
transactions.  Going through them one at a time is painful.  Is that the 
only way?
Thanks!