its not currently possible to edit/show or delete the geo-fences
unless you do it in the database directly...
there are several ways to see the trail, log in to the demo site,
click 'live working examples' then the 'search' icon, you can pick any
day to see the entire tracks for that day.
you can also see tracks in reports.
idle points can be seen when you do a 'on-site' report, which means
the user was 'at this point' for 'this amount of time'... i.e. they
were not moving.