I didn't find any response helpful - all the information given does not answer my original question. My dealer will not be able to clear this up because when I asked him, he said he did not know and e-mailed my question to you. Non billable transactions, when entered as a non billable code tracked to a client and case do not show in the invoice selection list so this does not work.
I guess the answer is NO - there is no way to clear out non billable time entered to a client and case number with a 6 digit non billable code (not a four digit source code).