All editing of slips in the draft stage requires editing the slip and check marking the "update original time entry box" unless it is a split billed matter. This box should be automatically checked for all draft editing and make it option to UNCHECK the box if you do not want to the original slip updated.
How often would you use this request?
Every single time we make edits, which we do from the draft stage. I would say that approximately 75% of our edits are on non-split matters.