rearranging accounts - backdoor?

[Brad Haack]

I'm just getting started w/ gnucash and have imported my data from 
quicken.  All of the accounts and categories got spread out at the top 
level and I'd like to reorganize them as subs under the main accounts 
(asset, income,etc).  I see how to do this with the GUI, but it's going 
to be slow and painful.  Is there a file hidden away that I can edit, or 
some other way to get at this with a text editor?