To be able to merge two logs in one
Jean-François Gagnon commented
In fact, two trips or more.
For example, when I go to a client house, I have to pick up my associate to his office. So because I have to wait for him at the office, automiles count this as 1 trip, going to my client house is another trip, going back at the office is the third trip, and going back to my home is the fourth trip. It would be really useful to be able to merge all those log into only ONE trip.
Would be very useful, as for example when stopping for fuel mid-trip. It's just simpler and less confusing to store this as one trip rather than split into two.