SLA to split liability entries on an AP Invoice

Summary

Is it possible to create an SLA to split the liability entry into 2 different liability accounts?

Content

I am trying to determine if this is possible, before I give it a try.  Hoping someone can give me some pointers.

When creating an AP invoice I would like to store a value in a DFF that would go to a separate liability account than the standard account setup on the supplier.  For example, if the total invoice is $1000.00, I would like to store $100 in that DFF.  When create accounting happens I would like $900 to go to the standard liability account, and that $100 to credit to a different liability account (that will be consistent across all entries)