Hi, I'm looking for a way to add the amortization sub-list columns that appear on the Bill record to a couple other record types, specifically the Credit Card Transaction and Check records, is there a known way to set that up?

You mean the native columns for Amortization Start & End Date? You cannot add them. You could create a journal from your CC & check records and use the amortization fields there.

Hmm I'll see if that'll do what I need, thanks