The Manage Trips feature in TG allows vehicle logbooks to be created, and trips assigned as either Business or Private. 


The Australian Tax Office (ATO) require a reason/comment on each business trip. For this reason trips will default to Private.


If you have many trips all for the same business reason, you can create a trip type under Admin -> Trip Types



Then you can select all trips in the Manage Trips window and set them to this trip type at once.