This might very simple to tackle but i have not found a solution to it. I have a set of GPS points along a drive route as shown the the diagram, the arrows indicate the route drive direction and i was wondering how to group these two sets of points.

if drive route A was from distance 10-1 and drive route B was from distance 1-10.

The screenshot below is what i have tried, I only get (distance 1-10) grouped the second set of data get added to the group, i.e, if the value of group 1 was 0, then next dataset will be 1,2,3, etc. Any help will be highly appreciated.

Regards,

Keller.