Connect Posted Approval Entry with G/L Registers

I have been struggling with this for a while now, Any help or suggestions would be highly appreciated.

How can I connect Posted Approval Entry to G/L Registers Tables? I'm trying to add "Approver ID" to the G/L Registers page.

From what I was able to find, the only field that has some sort of common information with the G/L Registers is the Posted Record ID (with caption Approved) but that field is only on the page level, the table has no data for this field at all.