would like to have a feature to show kilometer marks on the track dislplayed on the Locus screen. Similar to what you can swith on/off in GPSies. This could be a customizable feature (how frequent the marks are displayed, distance between marks, etc.) that would also depend on zoom level.
This feature might come in handy if your route/track for several days is just one long line and you would like to understand where you probably be in some hours knowing your average speed. for bicyclists this might be especially handy.