In the past we would setup BPC to include reporting for multiple GAAPs (like IFRS, USGAAP and a local GAAP) by means of adding an extra datasource where you would be able to do remapping some of your entries from one GAAP to another.
SO for instance if you had pensions in IFRS on your IFRS pension account, you would then, in the USGAAP datasource that sits above TOTAL IFRS, remap that amount to the USGAAP account in this way leaving all others the same but just having the USGAAP changes reflected in a total datasource that includes all of your input according to IFRS plus the remaps for USGAAP to give you USGAAP in an alternative hierarchy for exmaple.
That is how it was done, but i was wondering if there were any other ideas, expecvially if you have more than 2 or 3 GAAPs
LEt me know if you have other ideas,
best regards,
Edwin