It would be nice to have a "Breadcrumb Trail" or a "Track Line" in the Collector App. I work with pilots who are looking for radio collared wildlife or that leave and then have to come back to a transect line. It would be usefull to have a reference that we can go back to but that we are not actually collecting and storing. This would also allow us to be able to collect point features along a grid or a transect line that we are making in real time. Right now Collector does not have the ability to collect two features (a line and a point for instance) at the same time so we cannot stream a line and then collect a point when needed.