Splitting corporate starting values amongst departments

SUGGESTED

Hello, Sage 2020 was installed. We started a company in Sage and started entering some historical data. Linked Accounts were finalized.

Now, I realize per Puriboo's book that we should not have linked the accounts quite yet.

I wanted to spread 'opening balances' of the accounts amongst departments. I can still do this for most accounts, but not some big ones (i.e. Receivables, Payables).

It is still useful, but not optimized. Is there a way to get around this?