Whatever happened to `adjust balance'?

[Eric Hanchrow]

1.4 had a menu option called `adjust balance', with which I could tell
Gnucash the balance in an account, and it would add a transaction for
the correct amount.  (I forget which account the other half of the
transaction pointed to; I think it was an "unbalance" account that
would be created if needed).  I found this convenient for my wallet:
I'm always spending money out of my wallet without getting receipts.
Periodically I'd adjust the balance, and I'd in effect "scrub" the
added transaction, showing the money as going to "unknown".

1.6 doesn't seem to have this feature.  Is it in there somewhere that
I'm missing, or was it truly removed?  If the latter, is there a
better way to do what I'd been doing?

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