IPv6 Accounting + Volume Count

Hello, We are on verge of deploying Dual Stack mode to customer, while testing we found client v6 data is not counting for volume count. Inserting it to new column for v6 octets like v4 in radacct table modifing dialup.conf file will be fine as we need change lots of code to count user volume. Is there any way to add both & insert in existing column "acctinputoctets"/"acctoutputoctets". Acct-Input-Octets = 1892471418 Acct-Output-Octets = 1567085180 IPv6-Acct-Input-Octets = 539808892 IPv6-Acct-Output-Octets = 712113623 Regards