usage of separate Journal category for prior year expenses

Hi Team,

we have a requirement of booking invoice and payment accounting to separate custom Journal category based upon invoice GL date. i.e. all prior year expenses would be booked to 31st of Dec and based upon this GL date we want to segregate these booking through custom Journal category. current category as 'Purchase invoice' and 'Payments' needs to be replaced by some other custom category. this is needed to separately track prior year transaction data at GL end to not post it at stat ledger. please suggest how it can be achieved.

Regards,

Piyush