AP Unrealized Gains/Losses

Hello,

In order to calculate unrealized gain/loss in AP, I am creating a revaluation in GL which revalues the AP liability accounts.  As such,

the offset is to the Unrealized gain/loss account however I've noticed that it books the g/l entry at a balance sheet level (ap liability is

BS level as well).  Has anyone come up with a way to journalize that g/l entry to hit the actual cost center at which invoices are distributed

AND where we have such an unrealized g/l?

I have set the profile 'GL Revaluation: Tracking by Cost Center' - however this doesn't really help as I am only revaluing one simple code