It would be useful if once you tap out the mission line at a station the final comment from your station contact would be 'for more missions in this line check with X station in X location' or 'That's all we have for you here, why don't you try XXX for more work'.

I finished all the courier missions in Divinia and am currently at a loss to find anymore. I'm having to go system by system, station by station looking for more.