It would also help if you could set up approval levels between the positions. this would be helpful if we could designate certain types of journal entries can only be approved by one position and others only the director can approve - perhaps even by $ amount of the journal entry. This will allow us to implement similar internal controls and make assignments among the staff for certain types of transactions.

You must change the configuration settings. :) See attached.

This is happening later this year, we are currently working on some database view architecture changes in security that will enable that (I can approve journal entries created by others, but not my own). Once the database view change is done, we can implement it in NXT. Note that this will only be journal entries based on "created by" in a batch; there is future work to be done around how to handle individual journal entry lines (person A creates lines 1 - 5 in this batch, person B creates lines 6 - 10), but that seems like a less common use case.